von Alvensleben
Altmark · Saxony-Anhalt
Arms: Wikimedia Commons, nach GHdA-Adelslexikon Bd. 53 (1972), gemeinfrei
Leopold Friedrich von Gerlach was a Prussian officer; he died at only 35, two years after Elisabeth Luise. Their children included Ehrengard Pauline von Gerlach (1868–1909), who married Adolf von Thadden-Trieglaff in 1888.
One of the oldest and most significant ancient German noble families, documented since 1163 with Wichard von Alvensleben; the secured line of descent begins with Gebhard (1190–1216). Since the 12th century the family held the hereditary stewardship of the Bishopric of Halberstadt and was among the eight castle-holding noble houses of the Altmark. It produced Prussian ministers, diplomats and officers. A second connection: Karin von Gerlach (House of Rohrbeck) married Wilhelm von Alvensleben (see "Von Gerlach in Other Houses").
Sources: Degener Verlag, Deutsches Familienarchiv vol. 160 »von Gerlach – Lebensbilder einer Familie« (in German); Wikipedia articles on the families named; Wikimedia Commons (coat-of-arms images). Given to the best of our knowledge. Jürgen von Gerlach: von Gerlach. Lebensbilder einer Familie in sechs Jahrhunderten (Deutsches Familienarchiv 160), Insingen 2015 (in German). All sources. For corrections or additions, please contact the family administration.