Prince Edmund Earl of CHESTER, PRINCE
He married Princess Blanche of Artois . Princess Blanche of Artois was born at 1247 daughter of Prince Robert I Duke of Artois, Prince and Princess Mathilde of Brabant, Princess .
They were the parents of 4
children:
Earl Thomas of Lancaster
born 1272.
Earl Henry III of Lancaster, Earl
born 1274.
Lady Mary of Chester, Lady
born 1275.
Lord John of Beaufort
born 1276.
Prince Edmund Earl of Chester, Prince died 5 Jun 1276 at Bayonne, England .
Princess Blanche of Artois died 2 May 1302 .