Please answer the following question: Facts: - title: baroness le despencer countess of gloucester - mother: isabella of castile - spouse: thomas le despenser , 1st earl of gloucester - death date: 28 november 1416 1374 - house: house -lrb- by marriage -rrb- of york -lrb- by birth -rrb- le despenser - father: edmund of langley , 1st duke of york - birth date: c. 1374 - issue: richard despenser isabel le despenser , countess of worcester and warwick le despenser , 4th baron burghersh elizabeth le - birth place: conisburgh castle , yorkshire , england Based on these bullet points, write a short biography describing the life of constance of york , countess of gloucester .
A:
constance of york , countess of gloucester , -lrb- c. 1374 -- 28 november 1416 -rrb- was the only daughter of edmund of langley , 1st duke of york and his wife isabella of castile , daughter of king peter of castile and his favourite mistress , maria de padilla .