Payn married Catherine de Hainault d Avesnes in 1343 in Hainault, Hainault, Belgium. Catherine (daughter of Guillaume Count de Hainault de AVESNES "Willima the Good" (maid. name II) and Countess Jeanne de Hainault de VALOIS) was born in 1320 in Roet, Hainault, Belgium; died in Apr 1375 in Gent, Oost-Vlaanderen, Belgium. [Group Sheet] [Family Chart]

1. Elizabeth (lady Swynford) de roet was born on 25 Nov 1350 in Lincoln, Lincolnshire, England; died on 10 May 1403 in Lincoln, Lincolnshire, England.