Lord John Seton
John was born about 1370 in Seton,East Lothian,Scotland.  He died before 1434 in Seton,East Lothian,Scotland.

 Katherine St. Clair
Katherine was born about 1375 in Herdmanston,East Lothian,Scotland.  She died after March 28th, 1450 in Seton,East Lothian,Scotland.¹ 

 Sir William Seton
William was born about 1390 in Seton,East Lothian,Scotland.  He died on August 17th, 1424 in Battle of Berneuil,France (on French side) (dvp).²