Also known as Tar-Hostamir, Ar-Zimrathôn was born in S.A. 2798. He ruled as the twenty-first King of Númenor from S .A. 2962 until his death in S.A. 3033. Zimrathôn maintained his father Ar-Adûnakhôr's policies regarding the proscription of Elven tongues and ways, and he continued the persecution of the Faithful. When he died, his son Sakalthôr took the sceptre.