Konigswinter, a town and summer resort of Germany, in the Prussian Rhine province, on the right bank of the Rhine, 24 m. S.S.E. of Cologne by the railway to Frankfort-on-Main, at the foot of the Siebengebirge. Pop. (1905), 3944. The romantic Drachenfels (1010 ft.), crowned by the ruins of a castle built early in the 12th century by the archbishop of Cologne, rises behind the town. From the summit, to which there is a funicular railway, there is a magnificent view, celebrated by Byron in Childe Harolds Pilgrimage. A cave in the hill is said to have sheltered the dragon which was slain by the hero Siegfried. The mountain is quarried, and from 1267 onward supplied stone (trachyte) for the building of Cologne cathedral. The castle of Drachenburg, built in 1883, is on the north side of the hill. Konigswinter has a Roman Catholic and an Evangelical church, some small manufactures and a little shipping. It has a monument to the poet, Wolfgang Muller. Near the town are the rrfins of the abbey of Heisterbach.