National Geographic : 1956 Oct
465 Here Bishops Ruled a Valley and Conquered a Province In 999 the Bishops of Sion were created Counts of the Valais by Rudolf III of Burgundy. By defeating the Counts of Savoy, they won the lower Canton of Valais, formerly an independent province. This 13th-century church, Notre-Dame-de-Valere, is famous for its intricately carved choir stalls and a 550-year-old organ, the oldest in Switzerland. The small Chapel of Tous-les-Saints stands between the two prominences.