What is "droit d'aubaine"

Aubaine \Au`baine"\, n. [F., fr. aubain an alien, fr. L. alibi elsewhere.] Succession to the goods of a stranger not naturalized.
--Littr['e].

Droit d'aubaine, the right, formerly possessed by the king of France, to all the personal property of which an alien died possessed. It was abolished in 1819.
--Bouvier.

Droit \Droit\ (droit), n. [F. See Direct.] A right; law in its aspect of the foundation of rights; also, in old law, the writ of right. -- Abbott.

Droit d'aubaine. See under Aubaine.

Droits of the Admiralty (Eng. Law), rights or perquisites of the Admiralty, arising from seizure of an enemy's ships in port on the breaking out of war, or those coming into port in ignorance of hostilities existing, or from such ships as are taken by noncommissioned captors; also, the proceeds of wrecks, and derelict property at sea. The droits of admiralty are now paid into the Exchequer for the public benefit.