By God Alone achievement

The Two Swords

Have both the Holy Roman Emperor and the Pope as your Puppets at the same time

Conditions as the game checks them

Possible decides whether the achievement can still be earned in a run; happened is the check that unlocks it (common/achievements/_achievements.info).

Unlocks when (happened) (10 lines of game script)

custom_description = {
	text = ce3_04_the_two_swords_achievement_trigger
	title:e_hre.holder ?= {
		puppeteer ?= root
	}
	title:k_papal_state.holder ?= {
		pam_pope_is_head_of_faith_or_rite_trigger = yes
		puppeteer ?= root
	}
}

As written in game/common/achievements/ce3_achievements.txt.

The file gives no “possible” condition for this one.

Source: game/common/achievements/ce3_achievements.txt, game/common/achievement_groups.txt and the English localisation, Crusader Kings III 1.20.0.3.