Kreuzlingen Abbey , in Kreuzlingen in Switzerland, on the border with Germany, was founded in about 1125 by Ulrich I of Dillingen, Bishop of Constance, as a house of Augustinian Canons. In 1848 the government of the Canton of Thurgau dissolved the monastery and took over its property. The former abbey church of Saint Ulrich and Saint Afra, decorated in the Baroque style, is noteworthy.
Saint Conrad, Bishop of Constance from 935 to 976, brought back from Jerusalem a fragment of the True Cross, which he presented to the hospital he had founded in the suburb of Stadelhofen and from which it took the name of "Crucelin" which later became Crucelingen / Kreuzlingen. In 1093 this hospital was burnt down during hostilities between the Bishop of Constance and the Abbot of St. Gall.
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