A cadet member of a family long established in Buckinghamshire, Reygnes was the grandson and namesake of a veteran of the French wars. The elder Thomas also had a parliamentary career, for he was a knight of the shire in four late 14th-century Parliaments, twice for Buckinghamshire and twice for Bedfordshire. The MP’s father Richard was one of Sir Thomas’s younger sons, probably by a member of the Morteyn family, since he held a reversionary interest in the Morteyn manor at Marston Moretaine.
The former Morteyn manor at Marston Moretaine was held of the neighbouring manor of Milbrook, a lordship which belonged to the influential Sir John Cornwall, who was created Lord Fanhope in 1432.
Reygnes was succeeded by his son and namesake. The younger Thomas also inherited the manor of Clifton Reygnes, as the next heir of his childless cousin, John Reygnes, the last male representative of the main line of the Reygnes family, who had died at about the same time as the MP.
