Robert  'Furfan' de ROS
Robert  'Furfan' de was born about 1170.

 Isabel, Princess of SCOTLAND
Isabel, Princess of was born about 1163 in Scotland.

 William (Sir) de ROS
William (Sir) de was born about 1192 in Helmsley, Holderness, Yorkshire, England.  He died about 1264 in Kirkham,  England.