Hippolyte Delehaye,
1911 Encyclopædia Britannica, Volume 8…
(1911)
“ He suffered martyrdom at the village of Catulliacus, the modern St Denis. His tomb was situated by the side of the Roman road, where rose the priory of St-Denis-de-l’Estrée, which existed until the 18th century. In the 5th century the clergy of the diocese of Paris built a basilica over the tomb. About 625 Dagobert, son of Lothair II., founded in honour of St Denis, at some distance from the basilica, the monastery where the greater number of the kings of France have been buried. The festival of St Denis is celebrated on the 9th of October. ”
