thomas was closely associated with gruffudd ap nicholas, a powerful figure in south wales in the mid-15th century, as well as being thomas’ father-in-law. in 1446 thomas and gruffudd farmed part of cockmill in carmarthen, and in 1449 they were involved together in a lease of the town. while not nearly as prominent in politics as his father-in-law, father or grandfather, thomas did serve as beadle in widigada from 1451 to 1452, and he was apparently knighted.