Rashōmon (historic gate in Kyoto)
Refers to the famous southern gate of Heian-kyō (old Kyoto), known from historical records and legends.
Rashōmon was the main southern gate of Heian-kyō.
Rashōmon (Akutagawa story / Kurosawa film)
Refers to the famous short story by Ryūnosuke Akutagawa (1915) and the 1950 film by Akira Kurosawa, both titled 羅生門.
Akutagawa Ryūnosuke's 'Rashōmon' is set in the ruined capital of the Heian period.