31. He joined the Carthusian Order in 1606, and became prior of, Caumont-sur-Durance . 32. The Guil forms the southern border as it flows south-west to join the Durance at R�otier. 33. It specifically overlooks the valley of the Durance behind and the Fort du Gondran, closer to Italy. 34. Silvacane Abbey, on the Durance river at La Roque-d'Anth�ron, was founded in 1175. 35. This highway provides fast travel to Aix-en-Provence and Marseille away, via the Durance Valley. 36. To accommodate the longstanding claims of the count of Toulouse, in 1125 Provence was divided along the Durance . 37. It also benefited as a place of passage : a ferry crossing of the Durance is attested in 1178. 38. Thence he was conveyed to Charleston, where he remained in durance till near the close of the war. 39. Silvacane Abbey, on the Durance River at La Roque-d'Anth�ron, was founded in 1175. 40. It is endemic to the River Durance and River Beaume in the Rh�ne River basin in France and Switzerland.