Jan I and
Guyote were married in a religious ceremony before March 31st, 1331 in
Ijsselstein, Utrecht, Netherlands. They had three sons and seven daughters, and also a child of unknown gender, named
Arend Van Egmond,
Willem,
Albrecht,
Beatrijs,
Katharina,
Antonia,
Elisabeth,
Griete,
Maria,
Bartha (Baerte) and
Gerrit.