Wikipedia
Budivoj
Budivoj, Buthue, or Butue ( Polish Budziwoj) (died 1075) was the eldest son of Gottschalk, an Obotrite prince, by a mistress. He allied with the Dukes of Saxony in order to recover the power and position of his father, lost since Gottschalk's death (1066) to the pagan Kruto.