Robert de Vere, 3rd Earl of Oxford and Magna Carta Surety

Robert de Vere, 3rd Earl of Oxford is your 21st great grandfather.

You
   →  Mom
your mother →  Pvt. Garnett Hancock, WWII Veteran
her father →  Burrell H Hancock
his father →  Samuel Austin Hancock
his father → Elizabeth Edwards Hancock
his mother →  Brice Edwards
her father →  Olive Edwards
his mother →  Capt Joseph Martin, Sr., of Albemarle
her father → William Martin, merchant of Bristol
his father →  Capt. John Martin, of Pale Park
his father →  Thomas Martin, of Parkpole
his father → Robert Martin, of Athelhampton
his father →  Lady Marie Martin
his mother →  James Daubeney
her father →  William Daubeney, 5th Baron Daubeney
his father → Giles Daubeney, 6th Baron Daubeney
his father →  Margaret Daubeney
his mother →  Margaret (St John) de Beauchamp
her mother → Isabelle de St John, Baroness of St John of Basing
her mother →  Hugh Courtenay, Baron of Oakhampton
her father →  Isabel de Vere
his mother → Hugh de Vere, 4th Earl of Oxford
her father →  Robert de Vere, 3rd Earl of Oxford
his father

https://www.geni.com/people/Robert-de-Vere-3rd-Earl-of-Oxford/6000000001210373280