According to "Timaeus", one of Plato's dialogues, Sardinia (referred to by most ancient Greek authors as , ) and its people as well might have been named after a legendary woman going by Sardṓ (), born in Sardis (), capital of the ancient Kingdom of Lydia. There has also been speculation that identifies the ancient Nuragic Sards with the Sherden, one of the Sea Peoples. It is suggested that the name had a religious connotation from its use also as the adjective for the ancient Sardinian mythological hero-god Sardus Pater ("Sardinian Father" or "Father of the Sardinians"), as well as being the stem of the adjective "sardonic".