The South Tyrolean saga of King Laurin (German: König Laurin, Ladin: Re Laurin, Italian: Re Laurino) is part of a popular tradition in the Dolomites. It is a popular explanation of the optical phenomenon of Alpenglow (Ladin: Enrosadira), by which the summit of the mountains change their color to shades of red and purple during and after sunset. King Laurin's legend is also considered to be the source of the German name of the Rosengarten group (Italian: Catinaccio) between South Tyrol and the Trentino.