Hywel ap Madog, of Meisgyn

Please see Peter Bartrum: https://www.geni.com/documents/view?doc_id=6000000173392689858 & https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/4970/Cydrych... (Steven Ferry, November 22, 2020.)

Based on a review by Darrell Wolcott of Bartrum's "Iestyn" and "Rhys Goch of Ystrad Yw" pages. This is a work in progress and may need to be modified by future papers. (Steven Ferry, October 17, 2021.)

Please see Darrell Wolcott: Ifor Bach, Lord of Senghenydd; http://www.ancientwalesstudies.org/id316.html (Steven Ferry, August 5, 2023.)