Hugh le Despencer was the son of Hugh le Despencer, 1st Earl of Winchester, and Aliva Basset.
Isabella de Beauchamp was the daughter of William de Beauchamp, 9th Earl of Warwick and Maud fitz John.
According to Burkes The Peerage website Hugh and Isabella had three children:
Aline le Despencer
Isabel le Despencer
Hugh le Despencer
I've seen some websites say Philip le Despencer is also a son. He was born 1290 in Gloucester, England. He married Margaret de Goushill, daughter of Ralph de Goushill and Hawise Fitzwarine. They had two children:
Philip and Hawise Le Despencer.
Philip is a possible ancestor. Can anyone verify this?