What are the requirements for Entrench Regency in CK3?

You: They … too preoccupied to act as … right now. (patch 1.20.1.2)

Will the AI accept Entrench Regency?

Yes: it is accepted automatically.

Interaction · Diarch

Entrench Regency

No costAccepted automatically

Expand your Regency into an Entrenched Regency, making it harder for … to dismiss you from your post

What you need

You

To send it

… is not your Liege
Your liege:
- has_diarchy_active_parameter = unlock_entrench_regency_interaction
They … too preoccupied to act as … right now

To see it in the menu

If played by the AI:
- is_diarch = yes
- Your liege: Years in diarchy at least 2
Your liege:
- has_diarchy_parameter = unlock_entrench_regency_interaction
is_diarch_of_target = liege

Entrench Regency is a diarch character interaction in Crusader Kings III. You need: They … too preoccupied to act as … right now. Accepted automatically. Patch 1.20.1.2, from game/common/character_interactions/00_diarch_interactions.txt.

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Quick answers (2)

What are the requirements for Entrench Regency in CK3?: You: They … too preoccupied to act as … right now. (patch 1.20.1.2)
Will the AI accept Entrench Regency?: Yes: it is accepted automatically.

Will they accept?

The other character has no choice: the game accepts it automatically.

What happens

Effects

The character you target:
- set_diarchy_type = regency
- set_diarchy_swing = 40
- Opinion: Suspicion (-20)
Gain +150 Prestige

• the game's own tooltip text · ◦ our reading of the script line · code the script where neither exists

Who can use it and sees it (is_available, is_shown) (15 lines of game script)

is_available = trigger_if = {
	limit = {
		is_ai = yes
	}
	is_diarch = yes
	liege ?= {
		years_in_diarchy >= 2
	}
}
liege ?= {
	has_diarchy_parameter = unlock_entrench_regency_interaction
}
is_diarch_of_target = liege
exists = liege
is_shown = scope:actor != scope:recipient

As written in game/common/character_interactions/00_diarch_interactions.txt.

Can be sent when (is_valid…) (10 lines of game script)

custom_tooltip = {
	text = custom_description.tt.must_target_liege
	scope:recipient = scope:actor.liege
}
scope:actor.liege = {
	has_diarchy_active_parameter = unlock_entrench_regency_interaction
}
diarch_cannot_be_disabled_trigger = {
	DIARCH = scope:actor
}

As written in game/common/character_interactions/00_diarch_interactions.txt.

Effects (on_send, on_accept, on_decline) (31 lines of game script)

on_accept = scope:recipient = {
	send_interface_toast = {
		type = msg_start_diarchy
		title = diarch_entrench_regency_interaction.tt.recipient_notification
		left_icon = scope:actor
		set_diarchy_type = regency
		set_diarchy_swing = 40
	}
	add_opinion = {
		target = scope:actor
		modifier = suspicion_opinion
		opinion = -20
	}
}
scope:actor = {
	add_prestige = medium_prestige_gain
}
debug_log = debug_log.entrench_regency.attempt_made
scope:actor = {
	diarch_interaction_set_or_update_global_variable_effect = {
		VARIABLE = di_track_entrench
	}
	diarch_interaction_add_to_global_list_effect = {
		VARIABLE_LIST = di_track_entrench_actor_list
	}
}
scope:recipient = {
	diarch_interaction_add_to_global_list_effect = {
		VARIABLE_LIST = di_track_entrench_recipient_list
	}
}

As written in game/common/character_interactions/00_diarch_interactions.txt.

Category: Diarch
In the menu: main list
ID: diarch_entrench_regency_interaction

Source: game/common/character_interactions/00_diarch_interactions.txt and the English localisation, Crusader Kings III 1.20.1.2. “You” is the character who sends it (scope:actor, or a puppet acting for you); “the character you target” is the recipient. “…” marks words the game fills in at play time (a name, a title).