Game concept

County Capital

The game also links it as County Capitals.

From the game's encyclopedia

The County Capital is the main Holding of a County. This Holding can never be destroyed or Leased out and is always owned by the Ruler who holds the County Title.

County Capitals allows the construction of an additional Building compared to a lesser Holding.

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.

County Capital is an entry of Crusader Kings III's in-game encyclopedia. The game explains it: "The County Capital is the main Holding of a County." The game also links it as County Capitals. Patch 1.20.1.2, from game/common/game_concepts/00_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.

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Source: game/common/game_concepts/00_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.