Bretonnia tech tree

For the tech tree in Total War: Warhammer, see Bretonnia tech tree (Total War: Warhammer).

The Bretonnia tech tree available to Bretonnia factions consists of technologies that unlock new advantages throughout the game. Research takes place constantly, but the rate at which discoveries occur can be increased by using heroes to spy or building additional research buildings at your settlements.

The Chevaliers de Lyonesse has a slighty different version of the other Bretonnia factions, namely the part about Bretonnia heraldry.

Technologies

Tech	Prerequisite	Cost	Effects	Description
The Chivalric Code			Chivalry: +50 Armour: +5 for Lords and embedded Heroes Leadership: +5 for Lords and embedded Heroes	Every Bretonnian Lord knows that honour and chivalry come before everything.
Support Religious Errantry	The Chivalric Code		Chivalry: +100 Diplomatic relations: +50 with the Chevaliers de Lyonesse (available to all factions but Chevaliers de Lyonesse) Diplomatic relations: +100 with Thegan's Errantry, Knights of the Flame, Knights of Origo and Jerrod's Errantry Army	The ongoing Errantry Wars across the sea need constant political and financial support.
Overseas Diplomacy	The Chivalric Code		Diplomatic relations: +50 with Humans, High Elves and Lizardmen	King Louen knows Bretonnia cannot stem the tide of filth alone - diplomacy is required to broker alliances, lest fell darkness overrun the world entirely.
Lords of Athel Loren Diplomacy	The Chivalric Code		Diplomatic relations: +50 with Wood Elves	The insular Asrai are powerful allies yet dreadful, relentless enemies if provoked, so must be treated with reverence and respect around the diplomatic table.
Kings of the Mountains Diplomacy	The Chivalric Code		Diplomatic relations: +50 with Dwarfs	Dealing with the ill-tempered, easily-angered Dwarfs tests every ounce of a diplomat's capabilities, so oft-times the King leads the charm offensive himself lest misunderstandings lead to war.
Leaders of Men Diplomacy	The Chivalric Code		Diplomatic relations: +30 with Empire, Kislev and Southern Realms	Men tend to understand each other's motives, so diplomacy between factions is simply a matter of balancing competing interests for mutual advantage.
Kings of the Desert Diplomacy	The Chivalric Code		Diplomatic relations: +50 with Tomb Kings	Diplomacy with the grandiose, once-men Tomb Kings requires clever wordplay to leave them always with the sense that the agreed plan is theirs... regardless of one's true intentions.
Decrees of Bretonnia			Chivalry: +50 Melee attack: +5 for Lords and embedded Heroes Charge bonus: +5 for Lords and embedded Heroes	"By the King's word - and the eternal grace of the Lady - is Bretonnia governed for the good of its people."
Green Tide Decree	Decrees of Bretonnnia		Chivalry: +4 for every victory against Greenskins Diplomatic relations: -50 with Greenskins Immune to Barren Wasteland attrition (all armies) Double experience gain for units when fighting against Greenskins	"The King decrees that the Greenskin blight be utterly annihilated wherever, whenever, and however possible!"
Grey Mountain Watch	Green Tide Decree		Chivalry: +5 for every victory against Greenskins Diplomatic relations: -50 with Greenskins Leadership: +10 during subterranean intercept battles Weapon strength: +10% when fighting against Greenskins	Too long have the Greenskins pillaged Bretonnian lands.
Winter Woes Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Norsca Diplomatic relations: -50 with Norsca Immune to Snow attrition (all armies) Leadership: +8 when fighting against Norsca	"The King decrees that Bretonnians must double their efforts to defend the Kingdom against the barbaric forces of the North."
The North Guard	Winter Woes Decree		Chivalry: +5 for every victory against Norsca Diplomatic relations: -50 with Norsca Melee attack: +5 when fighting against Norsca Melee defence: +10 when fighting against Norsca	Across the sea of Claws lies an ancient threat; pay it the utmost attention, lest it grows too near.
Death's Grip Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Vampire Counts Diplomatic relations: -50 with Vampire Counts Attrition: -25% casualties suffered from Vampiric territory attrition Leadership: +8 when fighting against Vampire Counts	"The King decrees that the threat of Unliving incursions be foremost in the collective mind of the kingdom."
Forests' Edge Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Wood Elves Diplomatic relations: -50 with Wood Elves Leadership: +8 when fighting against Wood Elves Missile resistance: 10% when fighting against Wood Elves	"The King decrees that the malevolent forces of Athel Loren must be kept at bay."
Desert Purge Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Tomb Kings Diplomatic relations: -50 with Tomb Kings Leadership: +8 when fighting against Tomb kings Melee attack: +5 when fighting against Tomb Kings	"The King decrees that the trade routes will suffer no more harassment from desert bone-crawlers."
Ruinous Powers Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Warriors of Chaos, Chaos Dwarfs and Daemons of Chaos Attrition: +50% casaulties suffered from Chaos Undivided corruption and Chaos Wastes attrition Leadership: +8 when fighting against Warriors of Chaos, Chaos Dwarfs and Daemons of Chaos Armour-piercing weapon damage: +4 when fighting against Warriors of Chaos, Chaos Dwarfs and Daemons of Chaos	"The King decrees that the scourge of Chaos be stopped at all costs and the land delivered to safety."
Secure Shores Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Dark Elves Diplomatic relations: -50 with Dark Elves Leadership: +8 when fighting against Dark Elves Melee defence: +5 when fighting against Dark Elves	"The King decrees that the shores be secured against the vile raiders from Naggarond."
Safer Woods Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Beastmen Diplomatic relations: -50 with Beastmen Leadership: +8 when fighting against Beastmen Missile strength: +10% when fighting against Beastmen	"The King decrees that from this day forth, the forests of Bretonnia be made safe from the Beastmen's Ruinous bane."
Sewer Cleaning Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Skaven Diplomatic relations: -50 with Skaven Corruption: -1 (all provinces) Leadership: +8 when fighting against Skaven	"The King decrees that the sewers should not provide refuge to abominations."
High Seas' Decree	Decrees of Bretonnia		Chivalry: +4 for every victory against Vampire Coast Diplomatic relations: -50 with Vampire Coast -25% casualties suffered from Vampiric territory attrition Leadership: +8 when fighting against Vampire Coast	"The King decrees that the filthy pirate scum infesting the southern seas must be eradicated, so no trace of their foul presance remains."
Economic Investement			Growth: +4 Income from Settlement buildings: +3%	Banish uncertainty; invest in the kingdom's future.
Almshouses	Economic Investment		Growth: +10 Leadership: +5 for Peasant Mob units	The poor must be cared for, just enough to ensure productivity.
Subsidised Tools	Almshouses	2000	Construction cost: -5% for Infrastructure buildings Recruitment cost: -10% for Peasant Mob units Melee attack: +10 for Peasant Mob units	For what is a peasant without his pitchfork?
Town Census	Almshouses		Recruit rank: +2 for Peasant Mob units Local recruitment capacity: +1 (all provinces)	Know your population, know the size of your army.
Charity	Town Census	2000	Chivalry: +200 Control: +2	"Rejoice, peasants! For a generous Knight of Bretonnia provides for you!"
Encourage Fanaticism	Charity		Melee attack: +5 for Battle Pilgrims and Grail Reliquae units Melee defence: +5 for Battle Pilgrims and Grail Reliquae units	For those not born into nobility, there are few ways to gain the Lady's favour.
Temple Tithes	Encourage Fanaticism	10000	Chivalry: +200 Hero recruit rank: +2 for Paladins Ward save: 10% for Grail Knight and Grail Guardian units and embedded Paladin Heroes	Paladins are expected to donate large sums of their inheritance to the cult of the Lady.
Registered Draft	Town Census		Global recruitment capacity: +1 Upkeep: -5% for non-Knight units	Once the town census has been undertaken, its easy to round the peons up for military service.
Commission Carpenters	Town Census		Construction time: -1 for Province Capital/Settlement buildings Income from Timber industry: +50%	While wood is plentiful, carpentry skills remain relatively rare and so are prized in Bretonnia.
Longer Spears	Commission Carpenters		Melee attack: +5 for Spearmen-at-Arms, Men-at-Arms (Polearm), and Mounted Yeomen units Weaon strength: +10% for Spearmen-at-Arms, Men-at-Arms (Polearm), and Mounted Yeomen units	Better woodworking techniques allow for longer, more sturdy spears and polearms.
Professional Fletchers	Commission Carpenters		Ammunition: +15% Range: +5% for Peasant Bowmen and Mounted Yeomen Archers units Missile strength: +10% for Peasant Bowmen and Mounted Yeomen Archers units	Those peasants skilled at bow-making are ordered to do it year round, instead of supplying a village's quota.
Siege Engineering	Professional Fletchers		Leadership: +5 when laying siege or encircling Missile strength: +10% for Trebuchet units Reload time reduction: +15% for Trebuchet units	This requires educated men, often those who have studied abroad in the universities of Estalia or the Empire.
Improved Trade Vessels	Economic Investment	4000	Income from trade tariffs: +5% Tradable resources produced: +5%	A seaworthy fleet keeps the economy afloat.
Harbourmaster Bribes	Improved Trade Vessels	8000 50	Income from trade tariffs: +10% Tradable resources produced: +5%	Bribing the harbourmaster pays dividends on import duties.
Improved Agricultural Tools	Economic Investment		Income from Ports: +2%	No longer can a bad workman blame his tools...
Irrigation Ditches	Improved Agricultural Tools		Income from Ports: +3% Upkeep: -5% for infantry units	Irrigation ensures that the fields are watered and the people fed, no matter the season.
Wider Ploughs	Improved Agricultural Tools		Income from Farms: +2% Construction cost: -5% for Infrastructure buildings	The wider the plough, the higher the yield, in less time.
Water Pumps	Wider Ploughs		Each of your regions can sustain 1 extra peasant unit(s) Income from Farms: +3%	The less we depend on the elements, the greater our control over our food supplies.
Hay Stores	Wider Ploughs		Construction cost: -15% for Bretonnian Stable and Pasture buildings Construction time: -35% for Bretonnian Stable and Pasture buildings	The horses of Bretonnia are treated better than the smallfolk. Hay stores, for example, allow horses to feed all year round.
Farriers	Hay Stores		Speed: +10% for cavalry units	Steeds shod by a trained farrier have better purchase upon the roads and blessed ground of fair Bretonnia.
Blinker Hoods	Farriers		Leadership: +5 for Knight units Charge bonus: +10% for Knight units	Blinker hoods restrict the eyesight of horses, making the beasts easier to control.
Improved Construction	Economic Investment	3000	Construction cost: -5% for all buildings Construction time: -1 for Province Capital/Settlement buildings	Improve the process and all the results look after themselves.
Improved Smelters	Improved Construction Farriers		Income from Iron, Gem and Gold Mines: +15%	Stealing or copying techniques and forge designs from their Empire neighbours improves Bretonnian metalworking.
Glazing Kilns	Improved Smelters		Income from Industry: +10% Income from Pottery, Dye and Salt Industry: +50%	Building on breakthroughs in forge-design, kilns that can reach higher temperatures produce better earthenware.
Steel Furnaces	Improved Smelters		Income from Industry: +15% Armour: +8 for Knights units	The designs of these mighty furnaces have been taken from Nuln, and are used to create hardened plate.
Master Swordsmiths	Steel Furnaces		Weapon strength: +12% for sword infantry and all Knight units	Folding steel takes great skill; the more folds, the stronger and sharper the blade.
Regular Tournaments	Master Swordsmiths		Melee attack: +5 for Knight units Melee defence: +5 for Knight units	Tournaments are a way for noble knights to gain honour and maintain martial skills during rare glimpses of peacetime.
Bigger Bobbins	Improved Construction		Income from Industry: +10%	Bigger bobbins are better bobbins. It is known.
Weaving Apprenticeships	Bigger Bobbins		Income from Industry: +5% Research rate: +5%	Time spent schooling the workers pays dividends later.
Improved Loom Technology	Bigger Bobbins		Income from Industry: +5% Local recruitment capacity: +1 (all provinces)	The fruit of such a loom is industry in abundance.
Seamstresses	Improved Loom Technology		Income from Industry: +10% Recruitment cost: -10%	For some, appearances are everything - regardless of the truth of the matter.
Couronne, Carcassonne and Bordeleaux Errant only
Heraldry of Aquitaine	The Chivalric Code		Enables an opportunity to confederate with Aquitaine Chivalry: +100 Diplomatic relations: +100 with Aquitaine	Fair Aquitaine: a land of rolling fields, sandy shores... and incessant noble feuds.
Heraldry of Parravon	Heraldry of Aquitaine		Enables an opportunity to confederate with Parravon Chivalry: +100 Diplomatic relations: +100 with Parravon	Among the cliffs, peaks, and mountain ranges, the pegasi soar.
Heraldry of Artois	Heraldry of Parravon		Enables an opportunity to confederate with Artois Chivalry: +100 Diplomatic relations: +100 with Artois	Artois, where the unified dukedoms swore fealty to the Uniter.
Heraldry of Lyonesse	The Chivalric Code		Enables an opportunity to confederate with Lyonesse Chivalry: +100 Diplomatic relations: +100 with Lyonesse	Lyonesse, the homeland of the most devoted of all the Grail Companions.
Heraldry of Bastonne	Heraldry of Lyonesse		Enables an opportunity to confederate with Bastonne Chivalry: +100 Diplomatic relations: +100 with Bastonne	Bastonne, birthplace of the Uniter and the source of his bloodline.
The Unification of Bretonnia	Heraldry of Couronne Heraldry of Bordeleaux Heraldry of Carcassonne		Chivalry: +200 Peasant Economy: +10 peasants available to the faction	One people, one land - all shall know its glory and grandeur.
Carcassonne and Bordeleaux Errant only
Heraldry of Couronne	Heraldry of Artois (when playing Bordeleaux) Heraldry of Bastonne (when playing Carcassonne)		Enables an opportunity to confederate with Couronne Chivalry: +100 Diplomatic relations: +100 with Couronne	King Leoncoeur leads Bretonnia; his symbol, the Shield of Couronne.
Couronne & Bordeleaux Errant only
Heraldry of Carcassonne	Heraldry of Bastonne		Enables an opportunity to confederate with Carcassonne Chivalry: +100 Diplomatic relations: +100 with Carcassonne	The sons of Carcassonne bear the symbol of the sword, the insignia of their warrior-culture.
Couronne and Carcassonne only
Heraldry of Bordeleaux	Heraldry of Artois		Enables an opportunity to confederate with Bordeleaux Errant Chivalry: +100 Diplomatic relations: +100 with Bordeleaux Errant	Manann is more than a mere deity; he is a source of livelihood for many Bordelen citizens.
Chevaliers de Lyonesse only
Code of Conduct	The Chivalric Code		Chivalry: +100 Hero action cost: -10% for Paladins Hero action success chance: +5% for Paladins	To the Paladins of Bretonnia, the Code means more than the law of the land even.
Righteous Strength	Code of Conduct		Chivalry: +100 Weapon strength: +5% for Lords and embedded Heroes Speed: +5% for Lords and embedded Heroes	A Paladin's strength comes from a higher power which guides them forward to victory.
The Lady's Favour	The Chivalric Code		Chivalry: +100 Hero action cost: -10% for Damsels Hero action success chance: +5% for Damsels	The Lady gazes fondly upon her fair Damsels and blesses them always in her grace.
Prayer of Fortitude	The Lady's Favour		Chivalry: +100 Missile resistance: 5% for Lords and embedded Heroes Melee defence: +5 for Lords and embedded	A Damsel's prayers empower everyone around with the will to ride forth in the name of quest and glory.
Heroic Duties	Prayer of Fortitude Righteous Strength		Chivalry: +100 Lord recruit rank: +5 Hero recruit rank: +5	The Heroes of Bretonnia always put the land and their beloved Lady of the Lake above all else.
Rally the Peasants	Heroic Duties		Chivalry: +100 Peasant Economy: +15 for peasants available to the faction Recruitment cost: -15% for Peasant Mobs, Men-at-Arms with Swords, Battle Pilgrims and Foot Squires units Recruitment duration: -1 turn for Foot Squires units (minimum 1)	Even the lowly peasants feel inspired when they look upon Bretonnian Heroes, whose courage iluminates all.