William+ Sinclair
William+ was born about 1382 in Dunbeath, Caithness, Scotland.  He died in 1480.

 Elizabeth Douglas
Elizabeth was born about 1394 in Douglas, Lanarkshire, Scotland.  She died before 1451.

 William Sinclair
William was born about 1433 in Dunbeath, Caithness, Scotland.  He died in 1487.