Earl of Kendal 3rd Earl of Somerset' De Beaufort Sir John 'Knight' '1st Duke Somerset
Earl of Kendal 3rd Earl of Somerset' De Beaufort Sir John 'Knight' '1st Duke was born on March 25th, 1404 in Westminster, London, Olde England.¹   He died at the age of 40 on May 27th, 1444 in Wimborne Minster, Dorset, , England.² 

 Unknown

 John of Somerset
John of was born before 1434.  He died after 1453.

 Tomasine De Beaufort
Tomasine was born about 1434.  She died about 1469.