The Order of the Swan (German: Schwanenorden) was a spiritual chivalric order of princes and nobles ruled by the House of Hohenzollern. It was founded on 29 September 1440 by Elector Frederick II of Brandenburg with reference to the medieval tale of the Swan Knight.
The association originally comprised, with Elector Frederick at their head, thirty men and seven women united to honor Virgin Mary. Its headquarters was the Romanesque St. Mary's pilgrimage church, the centre of a Premonstratensian monastery located on a hill near Brandenburg an der Havel. In 1459, the Hohenzollern margrave Albert Achilles established a filial at the St. Gumbertus church near his Ansbach Residence.