Career
He was made a Knight of the Bath at the Coronation of Richard III in 1483. A year later when Richard III was defeated at the Battle of Bosworth (1485), he was attainted for rebelling against the King. Arundell then gave his support to Henry Tudor in his claim to the throne.
She was one of the four sisters and coheirs of John Dynham, 1st Baron Dynham.
Sir Thomas, like his father, may also have fought on the Lancastrian side at the Battle of Tewkesbury, but was granted a pardon after paying heavy fines. He had a brief and troubled career.
Anne was the only child of Sir John"s first marriage to Elizabeth Morley, daughter of Thomas de Morley, 5th Baron Morley. Katherine, Thomas" wife was granted an annuity of £100 from the forfeited estates, originally belonging to the Dynham family.
On the ascension of Henry VII, the attainder was reversed and the estates restored but the restitution was too late for Thomas who died 11 October 1485, just a few weeks after the Battle of Bosworth.
In addition to the Cornish properties and other inherited from Sir John Chideock in Dorset, he held four manors in Devon.