Queen Eleanor and King Henry had 5 children together they were Edward I, Margaret, Beatrice, Edmund Crouch-back and Katherine. Their youngest child Katherine was said to be their most beautiful child but she was infected with a disease that left her mute-deaf and she died at the young age of three. Eleanor and Henry were both affected by overwhelming grief.
Henry Percy was born 20 May 1364 at Alnwick Castle in Northumberland, the eldest son of Henry Percy, 1st Earl of Northumberland, and Margaret Neville, daughter of Ralph de Neville, 2nd Lord Neville of Raby, and Alice de Audley. He was knighted by King Edward III in April 1377 1364-1403