http://www.niku.no/no/arkeologi/utgravninger_og_funn/trondheim/sondre_gate/Archaeologists+in+Norway+find+the+church+and+altar+of+Viking+king+Olav+Haraldsson.9UFRHW16.ips
St Olaf was one of the last ancient Orthodox saints in Western Europe and he was honoured by a church in Novgorod and another in Constantinople. For a canonical Orthodox icon of St Olaf, see:
http://www.pravoslavie.ru/98759.html