Vibhishana
Vibhishana(Sanskrit: विभीषण, IAST: Vibhīṣaṇa, Burmese: ဘိဘိသန, ; Javanese: Wibisana; Khmer: Bibhek; Lao: Phibphi; Tamil: விபீஷணன்; Malay: Bibusanam; Thai: พิเภก Phipek; Sinhala:විභීෂණ; Yuan: Bikbi) or Bibhishan was a king who ruled what is part of Sri Lanka today and is also written off in the historical epic Ramayana. He was the younger half brother of the Rakshasa (demon) king Ravana of Lanka. Though a Rakshasa himself, Vibhishana was of a noble character and advised Ravana, who kidnapped and abducted Sita, to return her to her husband Rama in an orderly fashion and promptly. When his brother did not listen to his advice, Vibhishana joined Rama's army. Later, when Rama defeated Ravana, Rama crowned Vibhishana as the king of Lanka.
Read more about Vibhishana.