Philip De Seton
Philip was born in 1135 in Seton, East Lothian, Scotland.  He died at the age of 44 in 1179.

 Alice Dunbar
Alice was born about 1145 in Dunbar Castle, East Lorthian, Scotland.

 Alexander De Seton
Alexander was born in 1152 in Seton, East Lothian, Scotland.  He died at the age of 59 in 1211.