Katherine verch Rhodri

" It isn't known exactly when, but after 1272, Rhodri married Beatrice, daughter of John de Malpas of Cheshire[5]. This lady was born c. 1245 and had a daughter, Isabella, from a previous marriage. Beatrice owned several manors and other tracts of land in Cheshire[6], and there is nothing to indicate that she and Rhodri acquired other lands during their marriage nor had any children. ":

Please see Darrell Wolcott: Thomas ap Rhodri, Father of Owain "Lawgoch"; http://www.ancientwalesstudies.org/id153.html. (Steven Ferry, August 23, 2020.)