declare_canarias_decision_effects

declare_canarias_decision_effects = {
	#Create the title and set proper de jure
	title:d_canarias = {
		save_scope_as = d_canarias
		set_de_jure_liege_title = title:k_canarias
	}
	title:k_canarias = {
		save_scope_as = title_k_canarias
	}

	create_title_and_vassal_change = {
		type = created
		save_scope_as = title_change
		add_claim_on_loss = no
	}
	title:k_canarias = {
		change_title_holder = {
			holder = root
			change = scope:title_change
		}
		save_scope_as = title_k_canarias
	}
	resolve_title_and_vassal_change = scope:title_change

	if = {
		limit = {
			highest_held_title_tier < tier_empire
			primary_title != title:k_canarias
		}
		set_primary_title_to = title:k_canarias
	}

	#Prestige
	add_prestige = massive_prestige_gain
}

As written in game/common/scripted_effects/00_decisions_effects.txt.