1698 Johann Christopher Jauch adjourned his function in Lüneburg and served as court chaplain for Christiane Eberhardine of Brandenburg-Bayreuth, queen consort of Poland and grand duchess consort of Lithuania during her cure at Pretzsch, encouraging her to keep at her Lutheran faith after the conversion of her husband to Catholicism.
Christiane Eberhardine later was named by her Protestant countrymen "The Praying Pillar of Saxony" (German: Die Betsäule Sachsens)
His brother Joachim Daniel (1688–1754) served at first in the army of the Republic of the Seven United Netherlands, before he changed 1705 as lieutenant into the Saxon army.
He took part as a captain in the first siege of Stralsund 1711–12 during the Great Northern War.
At the end he was contemporaneously royal Polish colonel (since 1736), electoral Saxon major general (since 1746), superintendent of the Saxon building authority in Poland (since 1721), with the title director (since 1736), remunerated for each function separately.
His primary obligation was to supervise the baroque development of the city of Warsaw.
Vital was his responsibility for the extensive merrymakings of the Saxon court at Warsaw.

When 1730 at the end of tremendous fireworks at Zeithain which lasted for five hours, instead of the correct "VIVAT" in front of 48 foreign princes and numerous other lords a mistake in writing occurred and a "FIFAT" was illuminated, he gained his cognomen "Fifat".
He erected the Palais Jauch in Warsaw's suburb Solec and was architect for a number of prominent baroque buildings in Poland.

He married Eva Maria Münnich, said to be the daughter of the later Russian Field Marshal Burkhard Christoph Count von Münnich (1683–1767), his predecessor as superintendent of the Saxon building authority.
His son August von Jauch (b. 1731) was godson of King Augustus II the Strong.
The elaborate cradle endowed to his parents by the king, later the cradle for Joachim Lelewel, is exhibited in the National Museum, Kraków.
Joachim Daniel Jauch is buried in the Capuchins Church in the Miodowa in Warsaw.

Some members of the family followed Major General Joachim Daniel von Jauch (1688–1754) as officers into the Saxon and Polish army, two of them, Franz Georg Jauch (b. 1681) and Heinrich Georg Jauch (b. 1709), serving as lieutenant colonels – colonels in relation to the other regiments (German: Linienregimenter) – in the Royal Guard of King Augustus II the Strong and King Augustus III of Poland.
Franz Georg Jauch 1724 was participating as a captain in the Blood-Bath of Thorn, commanding a company of the Royal Polish Foot Guards Regiment.
1698 Johann Christopher Jauch adjourned his function in Lüneburg and served as court chaplain for Christiane Eberhardine of Brandenburg-Bayreuth, queen consort of Poland and grand duchess consort of Lithuania during her cure at Pretzsch, encouraging her to keep at her Lutheran faith after the conversion of her husband to Catholicism. Christiane Eberhardine later was named by her Protestant countrymen "The Praying Pillar of Saxony" (German: Die Betsäule Sachsens)
His brother Joachim Daniel (1688–1754) served at first in the army of the Republic of the Seven United Netherlands, before he changed 1705 as lieutenant into the Saxon army. He took part as a captain in the first siege of Stralsund 1711–12 during the Great Northern War. At the end he was contemporaneously royal Polish colonel (since 1736), electoral Saxon major general (since 1746), superintendent of the Saxon building authority in Poland (since 1721), with the title director (since 1736), remunerated for each function separately. His primary obligation was to supervise the baroque development of the city of Warsaw. Vital was his responsibility for the extensive merrymakings of the Saxon court at Warsaw.
When 1730 at the end of tremendous fireworks at Zeithain which lasted for five hours, instead of the correct "VIVAT" in front of 48 foreign princes and numerous other lords a mistake in writing occurred and a "FIFAT" was illuminated, he gained his cognomen "Fifat". He erected the Palais Jauch in Warsaw's suburb Solec and was architect for a number of prominent baroque buildings in Poland.
He married Eva Maria Münnich, said to be the daughter of the later Russian Field Marshal Burkhard Christoph Count von Münnich (1683–1767), his predecessor as superintendent of the Saxon building authority. His son August von Jauch (b. 1731) was godson of King Augustus II the Strong. The elaborate cradle endowed to his parents by the king, later the cradle for Joachim Lelewel, is exhibited in the National Museum, Kraków. Joachim Daniel Jauch is buried in the Capuchins Church in the Miodowa in Warsaw.
Some members of the family followed Major General Joachim Daniel von Jauch (1688–1754) as officers into the Saxon and Polish army, two of them, Franz Georg Jauch (b. 1681) and Heinrich Georg Jauch (b. 1709), serving as lieutenant colonels – colonels in relation to the other regiments (German: Linienregimenter) – in the Royal Guard of King Augustus II the Strong and King Augustus III of Poland. Franz Georg Jauch 1724 was participating as a captain in the Blood-Bath of Thorn, commanding a company of the Royal Polish Foot Guards Regiment.
Jauch family