1st Earl of March, 8th Earl of Dunbar Patrick (Black Beard) Dunbar & Margery Comyn 
Black Beard and Margery were married in 1282.1 They had four sons and a daughter, named Patrick, Alexander, Hugh, George and Margaret.
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Personal Details
1st Earl of March, 8th Earl of Dunbar Patrick (Black Beard) Dunbar
Patrick, known as Black Beard, was born in 1242 in Dunbar Castle, East Lothian, Scotland.1 He died at the age of 66 on October 10th, 1308.1
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I32637&style=TABLE
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=bevangenealogy&id=I32624
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=bevangenealogy&id=I32624