Harald Wartooth or Harold Hiltertooth (Old Norse: Haraldr hilditǫnn; Modern Swedish and Danish: Harald Hildetand; Modern Norwegian: Harald Hildetann; flourished 8th century) was a semi-legendary king of Denmark who is mentioned in several traditional sources. He is held to have (indirectly) succeeded his father as king of Zealand and to have expanded his realm. According to different sources, he may have ruled over Jutland, part of Sweden and the historical northern German province of Wendland. He is said to have been finally defeated and killed at the legendary Battle of Bråvalla. Name Saxo Grammaticus, in Gesta Danorum, gives two different accounts about why Harald had the name wartooth. According to one tradition, it was due to Harald having lost two of his teeth in battle against Veseti, the lord of Scania, after which two new teeth grew out. Saxo further tells that according to another opinion, the name was derived from Harald having protruding teeth. A scholarly view, however, holds the name to be derived from a name for "war hero". Sources Harald Wartooth is stated by most texts to have flourished three generations before the conquest of part of England by the sons of Ragnar Lodbrok (860s-870s). This would place him around the late 8th century, though the genealogy linking him with Viking Age rulers is dubious. However, the sources that mention him are quite late. The most detailed text is Saxo Grammaticus's chronicle Gesta Danorum (c. 1200) which is however complicated by the flow of Danish-patriotic rhetoric, in part a reflection of the Valdemarian age of military expansion. An Icelandic text Sögubrot af nokkrum fornkonungum (Fragment of a saga about some ancient kings, 13th century) provides brief details about his life and a fuller account of his dramatic demise. Shorter accounts are found in the Hervarar saga ok Heiðreks (13th century), Lejrekroniken (12th century), The Saga of Herraud and Bose, and others. A lay about the Bråvalla battle, seemingly written by a Norwegian skald in the 11th century, may once existed, forming the basis for the extended saga accounts. By far the oldest reference to Harald is a praise poem by Einarr Helgason from c. 980, where the current Danish ruler Harald Bluetooth is likened with Hilditann, implying that the older Harald was seen as a prestigious forbear of his younger namesake. There is moreover a song in the Poetic Edda, Hyndluljóð (12th century) which describes Harald's descent