Owain ap Gryffud de la Pole
Owain was born in 1258 in Cyfeiliog, Montgomeryshire, Wales.¹   He died at the age of 51 in 1309 in Gloddaeth, Creuddyn, Caernavonshire, Wales.² 

 Joan Corbet
Joan was born in 1261 in Caus Castle, Wattlesborough, Shropshire, England.²   She died at the age of 32 in 1293.³ 

 William ap Gruffydd de la Pole
William was born in 1275.³   He died at the age of 53 in December 1328.³ 

 Jane verch Owain de la Pole
Jane was born in 1279 in Cyfeiliog, Montgomeryshire, Wales.⁴ 

 Llywelyn ap Owain
Llywelyn was born in 1283 in Cyfeiliog, Montgomeryshire, Wales.²   He died at the age of 26 in 1309 in Gloddaeth, Creuddyn, Caernavonshire, Wales.² 

 Gruffydd ap Owain
Gruffydd was born in 1291 in Cyfeiliog, Montgomeryshire, Wales.⁴ 

 Hawise (The Hardy) Gadarn verch Owain
Hawise, known as The Hardy, was born in July 1291 in Cyfeiliog, Montgomeryshire, Wales.^4 5 

 Owain ap Owain de la Pole
Owain was born in 1293 in Cyfeiliog, Montgomeryshire, Wales.⁴