Abraham Lauck and Catherina Becker/Lauck had two daughters that many get mixed up.

"MARIA CATHERINA LAUCK" -born 1711 married Jacob Mountz and after Jacob died in 1753 she married John Tieter/Dieter?

Her sister "ANNA CATHERINA LAUCK"  born 1721 married Lazarus Wenger.

They both had many children beween them, giving birth  during the same time period.  They are clearly two seperate sisters. Ancestry has the marraige record wrong.

When Maria Catherina Lauck/Mountz's husband Jacob died in 1753, Her sister Anna Catherina Lauck/Wenger and husband Lazarus, took gaurdianship of son, Lazarus Mountz.

See Abraham Laucks' will- he refers to two different Catherina's.