 Her husband, "Rittmeister" Gustav Albrecht, was the head of the mediatized princely house of Sayn-Wittgenstein-Berleburg.He went missing in action in 1944, during World War II, and was declared legally dead in 1969.From 1944 to 1955, after her husband was reported missing, Margareta, as Princess Dowager, became the guardian for her son, Prince Richard, and managed her late husband's properties.