On 02 Nov 1307 Piers Gaveston 1st Earl Cornwall (age 23) and Margaret Clare Countess Gloucester were married. Arranged by King Edward II of England (age 23). Margaret Clare Countess Gloucester grand-daughter of Edward I through his daughter Joan and, as such, significantly higher than Gaveston in the nobility. She the daughter of Gilbert "Red Earl" Clare 7th Earl Gloucester 6th Earl Hertford and Joan of Acre Countess Gloucester and Hertford. She a granddaughter of King Edward "Longshanks" I of England.