Saint Arnoul des Yvelines

Arnoul of Yvelines (Arnoult, Arnoul, or Arnulfus), known as Saint Arnoult, is a legendary saint who is said to have been Bishop of Tours. The burial site attributed to him became the village where he is honored, Saint-Arnoult-en-Yvelines. A Christian saint, he is celebrated locally on July 18. His vita is linked to the pagus Castrensis, the region of Chatres (Castra), which became Arpajon.