In the King's Book of Payments for the year 1515 Tresilian was paid 30s 5d for clockmaking. He probably died within a couple of years. His successor was Anthony Trassillion, who might have been his son.
Tresilian received payment in the King's Book of Payments for 1515 for his work as a clockmaker, amounting to 30s 5d. It is likely that he passed away within two years. His replacement was Anthony Trassillion, who may have been his child.