He is best known for having a secret affair with the first wife of Mantiarco, Queen Amodetha of Solitude. As a result, he and the queen had a son, Prince Bathorgh, who was considered a son of the King himself. However, in 3E 97, during an investigation due to rumors of Thone's treason, Mantiarco found out about the affair.
He henceforth banished Prince Bathorgh from Skyrim, and Thone's post was taken by a loyal servant of Queen Potema, Lord Vhokken. The further fate of Lord Thone is uncertain, as he is not mentioned in any other records.