In Greek mythology, Theseus ruled Athens after becoming its king.
Theseus was closely associated with Athens even before the Minotaur adventure. After returning from Crete, he succeeded Aegeus and became the city’s legendary ruler. Later traditions credit him with political unification in Attica, bringing separate communities together under Athenian leadership.
The myth therefore links Theseus to both heroic exploits and the imagined early history of Athens. He is not primarily a king of Crete: Minos holds that role in the Minotaur story. Theseus’s Cretan victory strengthens his claim as Athens’s protector and helps explain why Athenian writers and artists treated him as a civic hero.