Name
- Rhys Nanmor1
- Rhys ab Jevan ab Bleddyn1
- Robert Leiaf1
- Robert ab Jevan Gruffydd1
- Roberts, Griffith, Dr1
- Robin Ddu, of Add MS 148661
- Salisbury, Phillip1
- Salisbury, Robert, of Rug, county Merionethshire1
- Sevnyn1
- Sion Brwynog, alias Sion ab Hywel ab Llywelyn ab Ithel, alias y Kardiwr du1
- Sion Ceri1
- Sion Davydd, o Nannau1
- Sion ab Morys1
- Syfryn Cyveiliog, alias Dafydd Bach ab Madog Wladaidd1
- Thomas Brydydd1
- Trevor, David, of Add MS 148661
- Trevor, John, of Add MS 148911
- Tudyrr Penllyn1
- Vaughan, Rowland1
- William Alaw1