Saint-Hippolyte (German: Sankt Pilt) is a commune in the Haut-Rhin department in Alsace in north-eastern France.It is often said to be the birthplace of the 8th-century saint and abbot, Fulrad, who built a monastery there. Saint-Hippolyte is situated very close to the highly strategic castle of Haut-Koenigsbourg, and for many centuries the conflict centred on possession of the castle had a great influence, mostly destructive, on the history of the town.