Cadwallon ab Ieuaf died in 986.
Hywel ap Ieuaf died in 985.
Cadwallon ap Madog died in 1179.
Cadwallon Lawhir ap Einion died in 534.
Cadwallon Lawhir ap Einion was born in 460.
Cadwallon - role-playing game - happened in 2006.
"Ab" means father in Aramaic. "Die" is not a known Aramaic word, so the meaning of "Ab die" is unclear.
Maredudd ab Owain ab Edwin died in 1072.
Ab Gowanlock died in 1988.
Ab Tresling died in 1980.
Ab Wright died in 1995.
Yes, AB Guthrie died on None
Goronwy ab Ednyfed died in 1268.