Which preposition to use with brandan

as Occurrences 1%

BRANDAN, ST., ISLAND OF, an island reported of by St. Brandan as lying W. of the Canary Islands, and that figured on charts as late as 1755, in quest of which voyages of discovery were undertaken as recently as the beginning of the 18th century, up to which time it was believed to exist.

from Occurrences 1%

It was called St. Brandan from a navigator of the sixth century, who went in search of the "Islands of Paradise.

Which preposition to use with  brandan