Llywelyn ap Seisyll – razlika između verzija

* {{citeCite book|author=[[John Edward Lloyd]]|title=A history of Wales: from the earliest times to the Edwardian conquest |publisher=Longmans, Green & Co.|year=1911|ref=harv}}

* {{citeCite book|author=[[editors: John Edward Lloyd, R.T. Jenkins]]|title=[[The Dictionary of Welsh Biography Down to 1940]] |publisher=Oxford|year=1959|ref=harv}}