In the 17th century Sulza has been twice devastated, 1613 by the Thuringian Flood and 1640 when it was plundered by Swedish troops.
Johann Christian Jauch the Elder (1638–1718) left the fallen back Sulza and relocated to Güstrow where he entered 1662 the service of the Grand Ducal House of Mecklenburg at its residence Güstrow Castle.
He was a member of the ducal household of Magdalena Sibylle, née Duchess of Schleswig-Holstein-Gottorf, wife of Gustav Adolph, Duke of Mecklenburg-Güstrow, until he became 1669 First Valet de chambre (German: Erster Lacquay und Taffeldecker) of Crown Prince Carl of Mecklenburg-Güstrow.
1665 he married Ingborg Nicolai (†1696), who had come to Güstrow with the duchess Magdalena Sibylle from Gottorf Castle, serving her as lady's maid and confidant.
The social rank of a servant at these times mirrored the lordship − the higher the lordship, the better the opportunities for the servant to reach a prestigious position himself.
 A ducal valet de chambre ranked in Mecklenburg-Güstrow equal to The Very Reverend, thus allowing the lordship to demonstrate its own rank.
Suitably the first daughters of Johann Christian and Ingborg Jauch married members of the nobility.

In 1688, Crown Prince Carl died without a male heir.
Johann Christian Jauch the Elder quit the service and became burgher of the city of Güstrow, dealing at retail and being a court shoemaker, purveyor to the ducal family.
His eldest son Johann Christopher Jauch (1669–1725) had been a stipendiary of the duke and carried out since the end of 1694 the function of a court chaplain (German: Hof- und Schlossprediger).
After the death of the last Duke of Mecklenburg-Güstrow, Gustav Adolph, in 1695 the dukedom of Mecklenburg-Güstrow became extinct.
Though duchess Magdalena Sibylla maintained a small court until 1718 the residence Güstrow lost its splendour and relevance.
Moreover, Ingborg Jauch had already died.
Therefore, almost all family members left Güstrow 1696 and turned to Lüneburg.
In the 17th century Sulza has been twice devastated, 1613 by the Thuringian Flood and 1640 when it was plundered by Swedish troops. Johann Christian Jauch the Elder (1638–1718) left the fallen back Sulza and relocated to Güstrow where he entered 1662 the service of the Grand Ducal House of Mecklenburg at its residence Güstrow Castle. He was a member of the ducal household of Magdalena Sibylle, née Duchess of Schleswig-Holstein-Gottorf, wife of Gustav Adolph, Duke of Mecklenburg-Güstrow, until he became 1669 First Valet de chambre (German: Erster Lacquay und Taffeldecker) of Crown Prince Carl of Mecklenburg-Güstrow. 1665 he married Ingborg Nicolai (†1696), who had come to Güstrow with the duchess Magdalena Sibylle from Gottorf Castle, serving her as lady's maid and confidant. The social rank of a servant at these times mirrored the lordship − the higher the lordship, the better the opportunities for the servant to reach a prestigious position himself.  A ducal valet de chambre ranked in Mecklenburg-Güstrow equal to The Very Reverend, thus allowing the lordship to demonstrate its own rank. Suitably the first daughters of Johann Christian and Ingborg Jauch married members of the nobility.
In 1688, Crown Prince Carl died without a male heir. Johann Christian Jauch the Elder quit the service and became burgher of the city of Güstrow, dealing at retail and being a court shoemaker, purveyor to the ducal family. His eldest son Johann Christopher Jauch (1669–1725) had been a stipendiary of the duke and carried out since the end of 1694 the function of a court chaplain (German: Hof- und Schlossprediger). After the death of the last Duke of Mecklenburg-Güstrow, Gustav Adolph, in 1695 the dukedom of Mecklenburg-Güstrow became extinct. Though duchess Magdalena Sibylla maintained a small court until 1718 the residence Güstrow lost its splendour and relevance. Moreover, Ingborg Jauch had already died. Therefore, almost all family members left Güstrow 1696 and turned to Lüneburg.
Jauch family