Senarath Adahasin was king of the Kingdom of Kandy from 1604 to 1635. He is said to be the successor to king Wimaladharmasuriya I of Kandy. However first-hand accounts are not available concerning what happened after the death of Vimaladharmasuriya I. According to most sources, he is said to be a cousin or brother of Vimaladharmasuriya. He was not a legitimate ruler hence he married not only the deceased king's widow Dona Katherina but also her two daughters, to legitimize his claim to the throne.