High Quality Content by WIKIPEDIA articles! The raven banner (in Old Norse: Hrafnsmerki; in Middle English: Hravenlandeye) was a flag, possibly totemic in nature, flown by various Viking chieftains and other Scandinavian rulers during the ninth, tenth and eleventh centuries A.D. The flag, as depicted in Norse artwork, was roughly triangular, with a rounded outside edge on which there hung a series of tabs or tassels. It bore a resemblance to ornately carved "weather-vanes" used aboard Viking longships.