See Ætites.

Black Eagle, an order of knighthood, instituted by the elector of Brandenburgh, in 1701, on his being crowned king of Prussia.

The knights of this order wear an orange-coloured ribband suspending a black eagle.

White Eagle, a like order in Poland, instituted in 1325, by Uladislaus V. on occasion of the marriage of his son Casimir to the daughter of the great duke of Lithuania.

The knights of this order wear a chain of gold, suspending a silver eagle crowned.