Family #56 in the 1775 Grimm census.
According to the Center for Volga German Studies at Concordia University, Portland, Oregon: 
Today, Kleingartach is a part of Eppingen, west of Heilbronn, Germany. I've included Eppingen in her birth location above for purposes of record-searching.
Her father Michael Kober immigrated with his family from Germany to Denmark in 1762.  While none of his family members are specifically named, since she was born in 1761 and the family arrived in Denmark in 1762, it can be inferred that one of the children was Rosina.
The family arrived in Flensburg, the Duchy of Schleswig, on 19 June 1762. Her father told immigration officials he was from Kleingartach near Brackenheim, Württemberg. He brought with him his wife and two children who are not specifically named in Danish records. Since they had two children, and Rosina was born in 1761, the other child must have been a newborn or young infant who, incidentally, did not survive the journey to the Volga region of Russia.
While in Denmark, the family were reserve colonists in Flensburg. They are recorded as living at 17 Auf der Lühe in colony G2 Fridrichsfeld, in the region of Gottorf. They were last documented in Denmark on 12 January 1765, after which they eventually left Denmark and immigrated to Grimm, Russia.
1775 Grimm Census 
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