Game concept · By God Alone
Puppet
The game also links it as Puppets, Puppeting, Puppeted.
From the game's encyclopedia
A Puppet is a Character under the control of a Puppeteer, who may take special Puppet actions through them.
Acting through a Puppet opens doors that would otherwise stay closed: a Realm Priest Puppet can petition for Clerical Titles or an Excommunication on your behalf, while a Secular Ruler Puppet can be made to release Tributaries, grant independence, or divorce their Spouse.
The actions available are determined by the Puppet Type.
The game's text for patch 1.20.1.2. Words in blue are entries of the encyclopedia: hover one to read it, as in the game.
Puppet is an entry of Crusader Kings III's in-game encyclopedia (By God Alone). The game explains it: "A Puppet is a Character under the control of a Puppeteer, who may take special Puppet actions through them." It covers Puppet Type, Puppeteer, Realm Priest Puppet, Clerical Ruler Puppet and Secular Ruler Puppet. The game also links it as Puppets, Puppeting and Puppeted. Patch 1.20.1.2, from game/common/game_concepts/pam_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.
Source: game/common/game_concepts/pam_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.