Pedigree Tree:
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Catrin Verch Iestyn Gwladus Verch Rhiwallon < Hywel Ap Rhys < Nest Verch Rhys < Gwenllian Verch Rhys < Gwladus Verch Rhys < Efa Verch Rhys < Ardden Verch Rhys < Gruffudd Ap Rhys < Llywelyn "Ddiriaid" Ap Rhys < Gronwy Ap Rhys Siblings Maredudd Ap Tewdwr Gwyn Ap Tewdwr Rhydderch Ap Tewdwr Nest Verch Tewdwr Elen Verch Tewdwr |