 From 1851 to 1854 he worked in Speyer with the sculptor Gottfried Renn (1818–1880) and in Frankfurt am Main with Eduard Schmidt von der Launitz (1797–1869) and Eduard Jakob von Steinle.In 1855 Peter Fuchs returned to Cologne, where he created such large sandstone reliefs and statue groups as the Four Prophets (1858) for the Mariensäule in the Gereonsdriesch and the life-size figures of SS Dionysius and Reinold (1866–1871) for the west front of St. Mauritius.From 1865 to 1881 he produced some 700 life-size and slightly over-life-size sculptures for Cologne Cathedral, mostly reliefs and seated and standing figures depicting scenes from the Bible and lives of the saints.