Siward Fitzdunning De+ Lathom & Helga De+ Kevelioc 
They had a son named Henry Fitzsiward De+.
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Personal Details
Siward Fitzdunning De+ Lathom
Siward Fitzdunning De+ was born on July 4th, 1073 in Lathom, Lancashire, England. He died at the age of 21 on January 9th, 1095.
Helga De+ Kevelioc
Helga De+ was born about 1074 in Kevelioc, Monmouthshire, Wales. She died on December 13th, 1094.
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Children
Henry Fitzsiward De+ Lathom
Henry Fitzsiward De+ was born on April 27th, 1093 in Lathom, Lancashire, England. He died at the age of 35 on June 12th, 1128.