Mattias Alexander von Ungern-Sternberg

His father was lieutenant general Nils Alexander von Ungern-Sternberg [sv] and his mother was Kristina Beatrix Palbitsky.

After his release, he returned to Sweden in 1709 and re-joined the Swedish army, which was by that time fighting a defensive campaign following the disaster of the Battle of Poltava.

[5] During the Russo-Swedish War of 1741–1743, he was obliged to participate in the campaign but managed to return to Stockholm in time for the session of parliament (the Riksdag of the Estates) in 1742, where he was elected Lord Marshal.

His imposing physical appearance, clear way of expressing himself and ability to quickly grasp complex issues acted to his benefit.

He was described by Erik Gustaf Geijer as "an honest man with moderate capabilities", but his political maneuvering successfully benefited his military career.

[11] Following this he retired from active service and spent the rest of his life on his family estate Äs säteri [sv] in Södermanland, Sweden.