Joseph II von Altenhaus

Joseph II, Prince von Altenhaus (1845-1921) was a Braslander nobleman. He was the son of Prince Joseph von Altenhaus.

In 1871 he married Baroness Elisabeth von Valsassina. They had nine children: Margarete (born 1873), Engelbert (born 1875), Maximilian (born 1877), Sophie (born and died 1878), Nora (born 1880), Wilhelm (born 1881), Ludwig (1883-1884), Karl (born and died 1885) and Maria Stella (born 1890).

Joseph was a self-taught astronomer and built an observatory in the tower of one of his castles.