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Female Sibyl FitzSiward Click to view Sibyl FitzSiward in the family tree

Sibyl was born in 1014 in Northumbria,ENGLAND.  Sibyl's father was Boete (Boedhe) of Scotland UNKNOWN and her mother was Elfleda of Bernicia.  Her paternal grandfather was Bjorn Ulsiusson; her maternal grandfather was Aldred of , Earl of Northumberland Bernicia. She had a brother named Waltheof Earl Of Northumberland.  She was the older of the two children. She had a half-brother and a half-sister, named Waltheof Earl Of Northumberland and Sibyl.  She died at the age of 56 in 1070 in ENGLAND.


Sibyl's family with Duncan I Mac Crinan 

‌Sibyl and Duncan I were married in a religious ceremony in 1030 in SCOTLAND.  They had three sons and a daughter, named Malcolm III, Donald III, 1st Earl of Atholl and UNKNOWN.

Sources/Citations
GEDCOM File : 46438.ged, GEDCOM File : rowland2.ged