Editing Llantwit Major (section)

===Côr Tewdws===
{{Main|Côr Tewdws}}

According to the 18th-century historian of ill-repute, [[Iolo Morganwg]], the Côr Tewdws or 'College of Theodosius' was established in the late 4th century at a place at or near Llantwit Major called Caer Worgorn by co-founders Emperor Theodosius and [[Constantine III (Western Roman emperor)|Custennin Fendigaid]], but was later burnt to the ground by Irish pirates and abandoned.<ref name=Iolo>{{cite book |last=Williams |first=Taliesin |date=1888 |title=Iolo Manuscripts |url=https://archive.org/details/iolomanuscriptss00willuoft |location=Liverpool |publisher=I Foulkes |page=}}</ref> Morganwg's works have since been discredited.<ref name=DWB>{{Cite web |url=https://biography.wales/article/s2-WILL-JOH-1892 |title=WILLIAMS, GRIFFITH JOHN (1892–1963), University professor and Welsh scholar |first=Aneirin |last=Lewis |website=Dictionary of Welsh Biography |access-date=20 December 2018}}</ref>