Walter Sydenham
Walter was born in 1442 in Brimpton, Somersetshire, England.  He died at the age of 27 on April 17th, 1469.

 Margaret Harcourt
Margaret was born about 1444 in Stanton, Oxford, England.  She died in 1477.

 John Sydenham
John was born about 1468 in Great Hampden, Buckinghamshire, England.