Nicolaus Lauer (34 years old) married Antoinette Jacob (32 years old) May 29th 1799 in Grevenmacher (Luxembourg). The parents of Nicolaus Lauer were Mathias Lauer and Anne Marie (Lauer-)Huettinger from Grevenich. The parents of Antoinette Jacob were Nicolaus Jacob and Susanna Weber from Lellig/Manternach. Grevenich is located in Germany, so the local Parrish books are kept by the German archives. At the National archives of Luxembourg, I found the census 1766 of Grevenich where figures the Lauer family.
Antonia Jacob was baptized July 9th 1767 in Manternach. Her parents were Nicolaus Jacon and Susanna Weber. Her godfather was Nicolaus Mangen from Lellig, her godmother was Antonia Jacob from Berbourg. Nicolaus Jacob married Susanna Weber September 18th 1764 in Manternach. The parents of Nicolaus Jacob were Nicolaus Jacob and Maria Steynmetz from Berbourg. The parents of Susanna Weber were Nicolaus Weber and Apollonia Platz from Lellig.
Sources: EC 48, Grevenmacher, VOL 2, M 1796-1890, 10 Prairial An 7 (29.5.1799), N 69, LAUER Nic. - JACOB Ant. RP 117A, Manternach, VOL 3, B 1740-1787, 9.7.1767, N 117, P 35, JACOB Antonia RP 117A, Manternach, VOL 3, M 1754-1787, 18.9.1764, P 4, JACOB Nic. - WEBER Sus.
RPOP A 4, Arlon 1766, Decanat Bitbourg, P 34, Grevenich, N 5, LAUER:
Lauer Mathieu, laboureur, Lauer Anne Marie Lauer Nicolas, laboureur
Lauer Theodore, Lauer Jean, Lauer Nicolas (younger than 16) Lauer Susanne, Lauer Marie, Lauer Anne Marie (younger than 14)