Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Waldemar I, Prince of Anhalt-Zerbst (d. 7 January 1368), was a German prince of the House of Ascania and ruler of the principality of Anhalt-Zerbst.He was the youngest son of Albert I, Prince of Anhalt-Zerbst, by his second wife Agnes, daughter of Conrad, Margrave of Brandenburg-Stendal.After the death of his father in 1316, the young Waldemar and his older brother Albert II were put under the custody of their maternal uncle Waldemar, Margrave of Brandenburg-Stendal. When both brothers reached adulthood, they ruled the principality of Anhalt-Zerbst jointly.Waldemar made his residence in Dessau and Albert in Zerbst or Köthen.