William V De+ Say & Sibyl+ Marshall 
They had a son and a daughter, named William VI De+ and Agnes De+.
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Personal Details
William V De+ Say
William V De+ was born about 1195 in West Greenwich, Kent, England. He died before February 12th, 1272.
Sibyl+ Marshall
Sibyl+ was born about 1206 in Derbyshire, England. She died on March 28th, 1254 in Leicestershire, England.
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Children
William VI De+ Say
William VI De+ was born on November 23rd, 1253 in Berling, Kent, England. He died at the age of 41 on September 16th, 1295.