adventurer_realm_destabilisation_transfer_effect

adventurer_realm_destabilisation_transfer_effect = {
	$TITLE_RECEIVER$ = { save_scope_as = adventurer }
	$TITLE_GIVER$ = { save_scope_as = ruler }
	$TITLE$ = { save_scope_as = title }
	if = {
		limit = {
			any_in_list = { list = independent_vassals }
		}
		# Vassals Breakaway
		create_title_and_vassal_change = {
			type = independency
			add_claim_on_loss = yes
			save_scope_as = change
		}
		hidden_effect = {
			every_in_list = {
				list = independent_vassals
				save_temporary_scope_as = vassal_temp
				if = {
					limit = {
						scope:adventurer = { top_liege = this }
						scope:ruler = {
							NOT = {
								any_held_title = {
									this != scope:title
									any_in_de_jure_hierarchy = { this = scope:vassal_temp.primary_title }
								}
							}
						}
					}
					becomes_independent = { change = scope:change }
				}
				else_if = {
					limit = {
						scope:ruler = {
							NOT = {
								any_held_title = {
									this != scope:title
									any_in_de_jure_hierarchy = { this = scope:vassal_temp.primary_title }
								}
							}
						}
					}
					change_liege = {
						liege = scope:adventurer.liege
						change = scope:change
					}
				}
				add_opinion = {
					modifier = seized_lieges_realm_crime
					target = scope:adventurer
				}
			}
		}
		resolve_title_and_vassal_change = scope:change
	}
	create_title_and_vassal_change = {
		type = conquest
		add_claim_on_loss = yes
		save_scope_as = change
	}
	hidden_effect = {
		every_in_list = {
			list = $TITLE_LIST$
			limit = { tier >= tier_county }
			custom_tooltip = CONQUEST_CB_TITLE
			every_in_de_jure_hierarchy = {
				continue = { tier >= tier_duchy }
				limit = {
					tier >= tier_county
					holder ?= {
						OR = {
							this = scope:ruler
							target_is_liege_or_above = scope:ruler
						}
					}
				}
				save_temporary_scope_as = title_temp
				if = {
					limit = {
						holder != scope:adventurer
						OR = {
							holder = scope:ruler
							holder.highest_held_title_tier >= scope:title.tier
							scope:adventurer = { has_claim_on = scope:title_temp }
						}
					}
					add_to_temporary_list = titles_taken
				}
				else = {
					holder = {
						if = {
							limit = {
								liege = scope:ruler
								NOT = { is_in_list = independent_vassals }
							}
							add_to_temporary_list = vassals_taken
						}
					}
				}
			}
		}
	}
	hidden_effect = {
		every_in_list = {
			list = vassals_taken
			change_liege = {
				liege = scope:adventurer
				change = scope:change
			}
		}
	}
	resolve_title_and_vassal_change = scope:change
}

As written in game/common/scripted_effects/07_dlc_ep3_scripted_effects.txt.