Witzlaus of Obotrites
As an ally of Charlemagne in his war against Saxons Witzan marched his army againsy Magdeburg in 782 and destroyed in completely. This provoked war with nearby Slavic nation of Wiltzi. In the war Obotrites allied with Franks, Sorbs, Frisians fought against Wiltzi and Danes. After restoration of Saxon rebellion Witzan marched again against them and was killed in ambush by Saxons in Liuni.