Which preposition to use with biscay

to Occurrences 3%

Extending for nearly 300 miles from the foaming billows of the Biscay to the azure waters of the Mediterranean, they form a huge barrier "'twixt France and Spain"; gaining their name of Pyrenees from the words "Pic Nérés," which in the patois of the country signifies "black peaks!"

in Occurrences 2%

HENDAYE.The French frontier town on the Bay of Biscay in the Basses-Pyrénées, known for the manufacture of a liqueur of the same name.

on Occurrences 1%

France, facing the Bay of Biscay on the W. and lying N. and S. between Charente-Inférieure and Landes; the Garonne and the Dordogne flowing through it form the Gironde estuary, and with their tributaries sufficiently water the undulating land; agriculture and some manufactories flourish, but wine is the chief product.

Which preposition to use with  biscay