Who are Arbogast and Florentius? The scarcity of sixth century documentation clouds the path of pioneer days when these missionaries entered Alsace, starting, we are told, with hermitages, to be consequently called to the see of Strassburg by Merovingian kings. The impression received points to the category of learned Irishmen who were drawn, first to the cultural centres of southern Gaul, becoming then infused into Trier for reformatory and apostolic reasons.
Arbogast and Florentius are treated with awe in the tenth century life of St. Dicuil, a chronicle from the Columbanian abbey of Lure in Burgundy. They are presented as shining examples, religious leaders, ‘of all Strasburg’s holy patrons the holiest’…
The accepted date for Arbogast’s arrival in Alsace is 550. His bishopric was preceded by a sojourn in the forest of Hagenau. This dense oakland, the haunt of anchorites, was called the Sacred Grove of Northern Alsace. Within it Arbogast had his cell. An oak tree of huge dimensions marks the spot. Indicative are the hamlets Saint-Arbogast and Chene (=oaktree) on the road from Strassburg to Weissenburg/Wissembourg.
On the northern fringe of the forest Surburg, Arbogast’s first monastery was founded. It was destroyed in the Thirty Years War. The abbey church has since been restored to house the founder’s tomb. His effigy is also in an old Gothic sanctuary in the centre of Surburg village. The cult of Arbogast was widely spread throughout Alsace, but his ministry was concentrated in the North and there are further indications that he travelled to these parts from Trier.

