Kings to the Seventh Generation

Character-locked: Count Eudes of Anjou, 867 (the game's Robert the Strong lineage - the Steam text calls him Eudes Capet). Your dynasty must come to hold the Kingdom of France. The wiki's patient route: consolidate Anjou and the surrounding duchy first, then use your feudal contract as a tool - offer the liege high levies for Protected Title Revocation, later high taxes for March status - to expand safely inside West Francia without royal interference. When you're strong enough, the Claim Throne scheme (requires the Meritocracy perk, Diplomacy lifestyle) puts the crown in reach - which conveniently is exactly Not So Feudal System. Usually a two-or-three-generation job.