Church of Saint Ambrose, Paris: Distant overall view, showing the facade and new boulevard

Saint-Ambroise was built between 1863 and 1868, shortly after the construction of the new Boulevard du Prince-Eug\u00E8ne, which was later renamed Boulevard Voltaire. It replaced a church called Notre-Dame de la Procession. The area was redeveloped as part of Baron Haussmann's city plan. Ballu built it in the Romanesque Revival style, although in general he was an eclectic architect.