Duncan married Helen Hassa in 1040 in Mearns, Aberdeenshire, Scotland. Helen (daughter of Hugh Hassa and Germunda Dervies) was born in 1010 in Glenbervie, Kincardineshire, Scotland; died on Aberbuthnoth, Kincardineshire, Scotland. [Group Sheet] [Family Chart]
6. David Oliphant, Justiciar of Scotland was born in 1105 in Lilford, Northamptonshire, England; died in 1170 in Smailholm Tower, Kelso, Roxburghshire, Scotland.