Dwfyn ab Amgolydd

See Darrell Wolcott, "Beli Mawr and Llyr Llediath in Welsh Pedigrees," http://www.ancientwalesstudies.org/id145.html -- for help in untangling these lines. (May 18, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: Beli Mawr and Llyr Llediath in Welsh Pedigrees; http://www.ancientwalesstudies.org/id145.html . (Steven Ferry, Aug 25, 2019)

Please see Darrell Wolcott: Harleian Ms 3859; http://www.ancientwalesstudies.org/id129.html. (Steven Ferry, March 8, 2021.)

Please see Darrell Wolcott: Foundations of 'The Men of the North' - Part 1; http://www.ancientwalesstudies.org/id278.html. (Steven Ferry, July 2, 2021.)