 The Danes were also being threatened by the Wends who were making raids across the border and by sea.Valdemar I had also just won a civil war and later Valdemar II led an expedition across the Elbe to invade Holstein.Sven Aggesen, a Danish nobleman and author of a slightly earlier history of Denmark than Saxo's, describes his contemporary, Saxo, as his "contubernalis", meaning "tent-comrade".