Christoph Miltenberger was a widower with two sons when he married Maria Christina Herlein on 26 February 1764 in the Catholic Church in Otterberg, about 7 kilometers north of Kaiserlautern, in what today is the German state of Rheinland-Pfalz.
Christoph and Christina had a daughter, Maria Gertruda, who was baptized on 31 December 1764 in St. Andreas Catholic Church in Landstuhl about 10 kilometers west of Kaiserlautern before they immigrated to Russia as colonists recruited by De Beuve & Precourt. The family departed from the port of Lübeck by the snow-brig Der Merkur with the skipper Johann Heinrich Abelmann, arriving in Oranienbaum on 8 August 1766.
The Miltenbergers settled in the Volga German colony of Sewald on 20 August 1767 and are recorded there on the 1767 Census in Household No. 30.
By the time of Sewald 1798 Census, Christoph and his descendants are recorded in Households No. Sd12 and Sd13. Another descendant moved to the nearby colony of Köhler and is recorded there in Household No. Kl160.
Today, this surname is generally spelled as Mildenberger.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Kl60, Sd12.
- Parish records of Landstuhl (LDS Film No. 488734).
- Parish records of Otterberg (LDS Film No. 488739).
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Nordost-Institut, 2008): 173.
- Pleve, Igor. List of Colonists to Russia in 1766 "Reports by Ivan Kulberg" (Saratov: Saratov State Technical University, 2010): #3349.