Gebhard XXV. von Alvensleben explained

Gebhard XXV. von Alvensleben (born December 1618, baptized 6 January 1619 at Beeskow - 1 October 1681 in Neugattersleben) was Magdeburg Privy Councilor, aristocrat and historian. In 1649, after the Thirty Years War, he became a councillor of Duke Augustus, Administrator of the Archbishopric of Magdeburg.^{[1] [2] [3]}

Notes and References

1. Siegmund Wilhelm Wohlbrück: Historical news of the family of Alvensleben and its estates. Third part. Berlin 1829, p. 171-191.
2. Georg Lorenz: Gebhard von Alvensleben's topography of the Magdeburg Archdiocese (1655). Dissertation Halle-Wittenberg 1900, print by Th. Wulfert, Schönebeck, 65 p.
3. [Udo von Alvensleben]