According to an entry in the Koeln document: catalogued in Speyer as 05D002007000722, Koln Regierung Nr 3660,
Nethanael Ungar was born in St Nicolaus in Ugarn. The are at least two places which that could refer to, either Liptovsky Mikulai in Slovakia or Sinnicolau Marc iin Romania. Both of these places were in Hungay at some time and both were also called Sankt Nikolaus at some time. I haven't so far found any trace of him in the former (but he left in 1793) and haven't yet tried the latter..
