k_poland = {
	867.1.1 = { change_development_level = 2 }
	1066.1.1 = { change_development_level = 8 }
	1101.1.1 = { change_development_level = 12 }
	1178.1.1 = { change_development_level = 24 }
	
	1025.4.18 = {
		holder = 756	#Boleslaw I the Brave
	}
	
	1025.6.17 = {
		holder = 758	#Mieszko II Lambert
	}
	
	1075.11.28 = {
		holder = 762	#Boleslaw II the Bold
		effect = {
			if = {
				limit = {
					exists = holder
					has_dlc_feature = royal_court
				}
				holder = {
					set_court_language = language_high_german
					if = {
						limit = { NOT = { knows_court_language_of = this } }
						learn_court_language_of = this
					}
				}
			}
		}
	}
	1079.5.1 = {
		holder = 764 # Wladyslaw I Herman
	}
	1102.6.4 = {
		holder = 170108	# Zbigniew
	}
	1107.4.1 = {
		holder = 221515	# Boleslaw III Wrymouth
	}
	1138.10.28 = {
		holder = 221531 # Wladyslaw II the Exile
	}
	1146.2.2 = {
		holder = 125973	# Boleslaw IV the Curly
	}
	1173.1.5 = {
		holder = 221560	# Mieszko III the Old
	}
	1177.4.21 = {
		holder = 221520	# Kazimierz II the Just
	}
	2025.1.1 ={holder = TMA_4}
}