Schloss Hohenschwangau, or Hohenschwangau Castle, is the less popular sister of Neuschwanstein Castle. It doesn't have the grand passions and romantic dreamery that surrounded the building of its spectacular neighbour.

The "sister castle" to Neuschwanstein is Hohenschwangau Castle, which is located directly across the valley in the village of Schwangau, Germany. While Neuschwanstein was the dreamlike, unfinished creation of King Ludwig II, Hohenschwangau was the childhood home where he spent much of his youth. It was built by his father, King Maximilian II, on the ruins of an older fortress. Architecturally, Hohenschwangau is in the "Neo-Gothic" style and served as the actual summer residence for the Bavarian royal family, whereas Neuschwanstein was intended as a theatrical, private retreat dedicated to the composer Richard Wagner. In 2026, most tourists visit both castles on the same day; the yellow-walled Hohenschwangau offers a more "lived-in" historical perspective with original furnishings, while the white-turreted Neuschwanstein represents the peak of Ludwig's architectural obsession. Another "spiritual" sister is Linderhof Palace, the only one of Ludwig's three major projects that he actually lived to see completed, which shares the same romanticism and obsession with French Bourbon aesthetics.