Catherine was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was William Bourke. They were married, but the date and place have not been found. Their five known children were Theobald (?-1578), Ulick (?-?), William (?-1578), David (?-?) and John (?-?).
Note 1
daughter of Sir John FitzThomas FitzGerald and Maud O'Brien