Norway's patron saint (4)

I think it could be either:

olaf

olav

'norway's patron saint' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for olaf that I've seen before include "King and patron saint of Norway" , "King --, cantata by Elgar" , "Name of five Norwegian kings" , "Man's name; foal (anag.)" , "Name of five kings of Norway" .)

I've seen this clue in the Newsday, the Universal and The New York Times.

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