E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
In France the king was entitled, at the death of foreign residents (except Swiss and Scots), to all their movable estates; the law was only abolished in 1819. Aubain means alien, and droit daubaine the right over an aliens property.
Had I died that night of an indigestion, the whole world could not have suspended the effects of the droits daubaine: my shirts and black pair of breeches, portmanteau and all, must have gone to the king of France.Sterne: Sentimental Journey (Introduction).