You found that information about her father probably in the genlias database.
On https://das.familysearch.org/das/v1/dgs:004415326.004415326_... is a transcription of the Engels family with their childern as found in the parish register trancripts. I attached the part of the page with this info. The trancription shows that their first son is named Cornelius * 1782 and the second son Petrus * 1784 and after his death the next son also Petrus * 1785. The naming system in those days was first son after fathers father. The second son after mothers father. The same system is used for the first and second daugther.