Game concept · The Royal Court
Court Grandeur
The game also links it as Court Grandeur Value, Grandeur.
From the game's encyclopedia
A Royal Court's Court Grandeur Value shows how famed the Court is, and unlocks new Court Grandeur Levels as it increases.
The value ranges from 0 and 100, and over time will settle at its Baseline value. The Baseline is affected by things like Dynasty Legacies, how much you're spending on Court Amenities, and if you have any magnificent Court Artifacts.
A portion of Grandeur is lost upon Succession.
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.
Court Grandeur is an entry of Crusader Kings III's in-game encyclopedia (The Royal Court). The game explains it: "A Royal Court's Court Grandeur Value shows how famed the Court is, and unlocks new Court Grandeur Levels as it increases." The game also links it as Court Grandeur Value and Grandeur. Patch 1.20.1.2, from game/common/game_concepts/01_ep1_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.
Source: game/common/game_concepts/01_ep1_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.