Document number 4913 in the Kulberg Reports.
Charlotta was born about 1727 in what is now Germany. She was the first wife of Nicolaus Muth, a Lutheran farmer from Isenberg. She was probably from the same area. The couple married on 10 January 1747 and had two children, Alexander, born 1747, and Susanna born about 1748. Charlotta and Nicolaus Muth embarked on their journey to immigrate to Russia in the summer of 1766. They arrived in Russia on 10 August 1766 on the Russian Pink Vologda under the command of Lt. Sergey Bartenyev.  There were no Muths in the Volga German Transportation List,  so it's not clear if everyone survived the hard winter in Oranienbaum and journey to the Volga region. What is clear, however, is that by August of 1767, when the first census was taken, Nikolaus was listed in the Grimm census without Charlotta, already married to his second wife.
1767 Grimm Census 
Some records show he married Charlotta Kühnemann. The dates are in sync with the Nikolaus Muth of this profile, but this record shows that he and his first wife were Catholic. Grimm records show that he was Lutheran. It is possible that he embraced another denomination once in Russia, as at least one other Grimm family did, but that happened with less frequency.
10 Jan 1747 • Hellstein, Main-Kinzig-Kreis, Hessen, Germany Gelnhausen Catholic Church Records - On January 10th Niclaus Müth, a musketeer with the Sovereign of Waldeck’s Regiment, legitimate son of the late Velten [Valentin] Muth, and Charlotta, legitimate daughter of Daniel Kühnemann from same place were married.
Charlotta Eleanora Kühnemann
Later on, in the birth record for one of their children, it shows he was baptized in the Lutheran church. He was the son of Nicolaus Muth and Charlotta Eleanora Kühnemann, so the record is for the same couple.
Maybe one of the couple was Catholic and the other was not?
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