
Effect · every source
How to increase Prowess in CK3
98 sources raise Prowess and 33 lower it in the game files of patch 1.20.0.3.
prowessThe biggest boosts
+8HerculeanTrait
+6Legendary BlademasterTrait · At 100 XP
+6GiantTrait
What raises Prowess (98)
Traits (66)

physique_good_3· game/common/traits/00_traits.txt

Giant+6
giant· game/common/traits/00_traits.txt
Culture with Only the Strong or Warrior Queens or Warrior Kings or Bushidō or Fragile Peace or Art of War
education_martial_5· game/common/traits/00_traits.txt
berserker· game/common/traits/00_traits.txt
Culture with Only the Strong or Warrior Queens or Warrior Kings or Bushidō or Fragile Peace or Art of War
education_martial_4· game/common/traits/00_traits.txt
Culture with Warrior Priests or Warrior Monks
education_learning_4· game/common/traits/00_traits.txt
Culture with Warrior Priests or Warrior Monks
education_learning_5· game/common/traits/00_traits.txt
Gallant+4
gallant· game/common/traits/00_traits.txt
Torturer+4
torturer· game/common/traits/00_traits.txt
Sadistic+4
sadistic· game/common/traits/00_traits.txt
Robust+4
physique_good_2· game/common/traits/00_traits.txt
Strong+4
strong· game/common/traits/00_traits.txt
order_member· game/common/traits/00_traits.txt
education_martial_prowess_4· game/common/traits/00_traits.txt
campeador· game/common/traits/00_traits.txt
Culture with Only the Strong or Warrior Queens or Warrior Kings or Bushidō or Fragile Peace or Art of War
education_martial_3· game/common/traits/00_traits.txt
Culture with Warrior Priests or Warrior Monks
education_learning_3· game/common/traits/00_traits.txt
lifestyle_blademaster· game/common/traits/00_traits.txt

Brave+3
brave· game/common/traits/00_traits.txt

faith_warrior· game/common/traits/00_traits.txt
shieldmaiden· game/common/traits/00_traits.txt
Viking+3
viking· game/common/traits/00_traits.txt
education_martial_prowess_3· game/common/traits/00_traits.txt
Culture with Only the Strong or Warrior Queens or Warrior Kings or Bushidō or Fragile Peace or Art of War
education_martial_2· game/common/traits/00_traits.txt
Culture with Warrior Priests or Warrior Monks
education_learning_2· game/common/traits/00_traits.txt


Culture with Warrior Priests or Warrior Monks
theologian· game/common/traits/00_traits.txt
Vengeful+2
vengeful· game/common/traits/00_traits.txt
irritable· game/common/traits/00_traits.txt
Hale+2
physique_good_1· game/common/traits/00_traits.txt
Culture with Warrior Priests or Warrior Monks
pilgrim· game/common/traits/00_traits.txt

saoshyant· game/common/traits/00_traits.txt
varangian· game/common/traits/00_traits.txt
Cannibal+2
cannibal· game/common/traits/00_traits.txt
heresiarch· game/common/traits/00_traits.txt
crusader_king· game/common/traits/00_traits.txt
greatest_of_khans· game/common/traits/00_traits.txt
education_martial_prowess_2· game/common/traits/00_traits.txt
warlike_court_2· game/common/traits/00_traits.txt
despoiler_of_byzantium· game/common/traits/00_traits.txt

Culture with Only the Strong or Warrior Queens or Warrior Kings or Bushidō or Fragile Peace or Art of War
education_martial_1· game/common/traits/00_traits.txt
Culture with Warrior Priests or Warrior Monks
education_learning_1· game/common/traits/00_traits.txt
Hunter+1
lifestyle_hunter· game/common/traits/00_traits.txt

Culture with Warrior Priests or Warrior Monks
lifestyle_mystic· game/common/traits/00_traits.txt
ambitious· game/common/traits/00_traits.txt
Athletic+1
athletic· game/common/traits/00_traits.txt


education_martial_prowess_1· game/common/traits/00_traits.txt
warlike_court_1· game/common/traits/00_traits.txt








Lifestyle perks (1)
stalwart_leader_perk· game/common/lifestyle_perks/00_martial_3_chivalry_tree_perks.txt
Focuses (1)

Not Adventurer government
martial_chivalry_focus· game/common/focuses/00_lifestyle_focuses.txt
Cultural traditions (3)

Characters of this culture
tradition_mpo_wolves_of_the_deep_steppe· game/common/culture/traditions/09_mpo_traditions.txt
Hirds+2
Characters of this culture
tradition_hird· game/common/culture/traditions/00_maa_traditions.txt
Characters of this culture
tradition_pastoralists· game/common/culture/traditions/00_realm_traditions.txt
Culture pillars (1)
Innovations (1)

Characters of this culture
innovation_wootz_steel· game/common/culture/innovations/00_tribal_innovations.txt
Tenets (5)

Followers
tenet_unrelenting_faith· game/common/religion/tenet_types/00_tenet_types.txt
Characters holding it as a personal tenet
tenet_cranial_trophies· game/common/religion/tenet_types/00_tenet_types.txt
Followers
tenet_mortification_of_the_flesh· game/common/religion/tenet_types/00_pam_tenets.txt
Fedayeen+2
Characters holding it as a personal tenet
tenet_fp3_fedayeen· game/common/religion/tenet_types/00_tenet_types.txt
Characters holding it as a personal tenet
tenet_pure_land· game/common/religion/tenet_types/00_tenet_types.txt
Doctrines (1)

Clergy
doctrine_clerical_function_recruitment· game/common/religion/doctrine_types/20_doctrines.txt
Holy sites (13)
Toledo+2
Toledo · Holder of the county
toledo_mozarabic· game/common/religion/faith_types/00_faith_types.txtKyiv · Holder of the county
konugardr· game/common/religion/faith_types/00_faith_types.txtTinmallal · Holder of the county
tinmallal· game/common/religion/faith_types/00_faith_types.txtKutai+2
Kutai Utara · Holder of the county
kutai· game/common/religion/faith_types/00_faith_types.txtMolihewen · Holder of the county
molihewen· game/common/religion/faith_types/00_faith_types.txtJunzhou · Holder of the county
mount_wudang· game/common/religion/faith_types/00_faith_types.txtKilimanjaro · Holder of the county
kilimanjaro· game/common/religion/faith_types/00_faith_types.txtBaduspan · Holder of the county
mount_damavand· game/common/religion/faith_types/00_faith_types.txtPerm+1
Perm · Followers, while the faith holds it
perm· game/common/religion/faith_types/00_faith_types.txtBarlad+1
Bârlad · Followers, while the faith holds it
barlad· game/common/religion/faith_types/00_faith_types.txt
Buildings (4)

Holder · culture with Metalworkers
Levels 1–3: +2 to +4 (3 levels give it)
royal-armory· game/common/buildings/00_duchy_capital_buildings.txt
Holder · culture with Metalworkers
Levels 1–3: +2 to +4 (3 levels give it)
blacksmiths· game/common/buildings/00_duchy_capital_buildings.txt
Holder · culture with Warrior Priests or Warrior Monks
Levels 1–8: +1 to +4 (8 levels give it)
monastic-schools· game/common/buildings/00_temple_buildings.txt
Holder
Levels 1–5: +1 to +3 (5 levels give it)
hall-of-heroes· game/common/buildings/00_special_buildings.txt
Dynasty legacies (2)
House of Warriors+2
Warfare legacy · Members of the dynasty
warfare_legacy_1· game/common/dynasty_perks/00_dynasty_perks.txtSea-Wolves+1
Pillage legacy · Members of the dynasty
fp1_pillage_legacy_1· game/common/dynasty_perks/01_fp1_dynasty_perks.txt
What lowers Prowess (33)
Traits (31)

Blind-10
blind· game/common/traits/00_traits.txt
wounded_3· game/common/traits/00_traits.txt
Feeble-6
physique_bad_3· game/common/traits/00_traits.txt
wounded_2· game/common/traits/00_traits.txt
Maimed-4
maimed· game/common/traits/00_traits.txt
one_legged· game/common/traits/00_traits.txt
beardless_eunuch· game/common/traits/00_traits.txt
Frail-4
physique_bad_2· game/common/traits/00_traits.txt
Dwarf-4
dwarf· game/common/traits/00_traits.txt
Craven-3
craven· game/common/traits/00_traits.txt
inappetetic· game/common/traits/00_traits.txt
Drunkard-2
drunkard· game/common/traits/00_traits.txt
flagellant· game/common/traits/00_traits.txt
Pregnant-2
pregnant· game/common/traits/00_traits.txt
Wounded-2
wounded_1· game/common/traits/00_traits.txt
One-Eyed-2
one_eyed· game/common/traits/00_traits.txt
clouded_eyes· game/common/traits/00_traits.txt




Delicate-2
physique_bad_1· game/common/traits/00_traits.txt
clubfooted· game/common/traits/00_traits.txt
hunchbacked· game/common/traits/00_traits.txt
Inbred-2
inbred· game/common/traits/00_traits.txt
Weak-2
weak· game/common/traits/00_traits.txt
faltering_heart· game/common/traits/00_traits.txt



Spindly-1
spindly· game/common/traits/00_traits.txt
Cultural traditions (1)

Agrarian-2
Characters of this culture
tradition_agrarian· game/common/culture/traditions/00_realm_traditions.txt
Tenets (1)
Source: game/common/buildings/00_duchy_capital_buildings.txt, game/common/buildings/00_special_buildings.txt, game/common/buildings/00_temple_buildings.txt, game/common/culture/innovations/00_tribal_innovations.txt, game/common/culture/pillars/00_ethos.txt, game/common/culture/traditions/00_maa_traditions.txt, game/common/culture/traditions/00_realm_traditions.txt, game/common/culture/traditions/09_mpo_traditions.txt, game/common/dynasty_perks/00_dynasty_perks.txt, game/common/dynasty_perks/01_fp1_dynasty_perks.txt, game/common/focuses/00_lifestyle_focuses.txt, game/common/lifestyle_perks/00_martial_3_chivalry_tree_perks.txt, game/common/religion/doctrine_types/20_doctrines.txt, game/common/religion/faith_types/00_faith_types.txt, game/common/religion/tenet_types/00_pam_tenets.txt, game/common/religion/tenet_types/00_tenet_types.txt, game/common/traits/00_traits.txt and the English localisation, Crusader Kings III 1.20.0.3. Building chains are shown once, at their strongest level, with the range over their levels. Effects that come only from events or scale with a script value are not listed.