Colban of Buchan
Colban of was born before 1100 in Buchan, Aberdeenshire, Scotland.  He died after 1140.

 Eva of Buchan
Eva of was born before 1125.  She died after 1140.

 Roger Buchan
Roger was born about 1140 in Buchan, Aberdeenshire, Scotland.  He died after 1170.