eponymous
adj. C1 Advanced US //ɛˈpɔˌnɪməs// UK //ɛpˈɒnɪməs// epony·mous
adj. named after a person, or being the most famous thing about a person or place.
adj. named after a person; being the most prominent or famous thing associated with a person or place.
The eponymous founder of the company still works there.
The eponymous lead actor of the film received the best performance award at the ceremony.
While the city is famous for its history, the eponymous cathedral remains its most significant architectural landmark and a primary tourist attraction.
PIE word *h₁epi From Ancient Greek ἐπώνῠμος (epṓnŭmos, “concerning giving one’s name to something; named in a significant manner; surnamed”) + English -ous (suffix forming adjectives from nouns, denoting pertinence or relation).