Fortress Koblenz-Bubenheimer Flesche

Between 1816/17 and 1822, the Bubenheimer Flesche was constructed on the eastern side of Petersberg, an elevation on the left bank of the Moselle. Together with Feste Kaiser Franz, it formed the core of a fortress system. After 1850, structural adjustments were made, including the traversing and regulation of the rampart from 1864 to 1866, and the reconstruction of the collapsed left flank in 1877/78. In 1890, the Flesche was abandoned along with other works of the system. After World War I, the complex fell under the provisions of the Treaty of Versailles and had to be de-fortified. Demolition work began in mid-July 1920 and was completed in November of the same year. Among the remnants were the reduit and a mortar battery.