Heinrich Gabriel von Altenhaus
From NSWiki
Prince Heinrich von Altenhaus (1918-1996) was the son of Prince Maximilian von Altenhaus.
In 1946 he married Countess Michaela von Lichtenberg. They had six children: Johannes Engelbert (born 1948), Margarita (born 1950), Theodora (born 1953), Amelia (born 1955), Friedrich (born 1958) and Matthias (1959-1960).