I've always said B-york too...
But the oe made me think of another possibility... lots of Scandinavian languages have rounded vowels not found in English, and œ usually represents a vowel pronounced like "eee" but with your lips shaped like an "o" (try it and see hehe)... it sounds a bit to the native English ear as a cross between the the 'oh' and 'er' sounds maybe? I dont know. I know nothing about Scandinavian languages and I'm talking out of my butt basically

hehehe