Llywarch Fychan ap Llywarch

See Darrell Wolcott, http://www.ancientwalesstudies.org/id140.html -- for a discussion of three different Iorwerths Goch, often conflated in the medieval manuscripts, and a method for untangling them. (May 27, 2017; Anne Brannen, curator)

Please see Darrell Wolcott: Llowarch ap Bran - Lord of Menai; http://www.ancientwalesstudies.org/id32.html. (Steven Ferry, March 5, 2020.)

Please see Darrell Wolcott: Three Men Called Iorwerth Goch "ap Maredudd"; http://www.ancientwalesstudies.org/id140.html. (Steven Ferry, September 6, 2020.)

Please see Darrell Wolcott: The Unknown Cadwgan; http://www.ancientwalesstudies.org/id246.html. (Steven Ferry, November 20, 2020.)