So I am assuming that you are referring to this marriage:
Bruidegom Cornelis de Leeuw
Vader bruidegom Sijbren Willems de Leeuw
Moeder bruidegom Janneke Jans Dekma
Bruid Joanna Maria van Lieshoud
Vader bruid Peeter van Lieshoud
Moeder bruid Wilhelmina Janse
Soort registratie huwelijksakte
Diversen Akte bevat meer info, weduwnaar van Wilhelmina van Oeffelt
Datum huwelijk 10-07-1852
Deel Huwelijksregister Uden 1852
So Johanna Maria who is the daughter of a Peter van Lieshout and Wilhelmina Janssen gets married on 10 Jul 1852. Again we dont have the birthdate matching with the birth certificate of Wilhelmus. If that is the right Johanna Maria, then I had the wrong Johanna Maria in an earlier post wher eI thought that she was also a product of an unwed mother and father unknown.
The problem I have here is that I looked up the original marriage certificate and there is no mention of "erkenning" of the groom to the child Wilhelmus that the bride was supposed to have given birth to a year before.
Erkenning doesn't mean that the groom acknowledges that he is the biological father, all it means is that he accepts to be the legal parent of the illegitimate child of the bride. It doesn't seem right to me that the child isn't mentioned at the marriage. I don't think we have the right Johanna Maria van Lieshout here.
The marriage record of Cornelis van Leeuw and Johanna Maria van Lieshout can be found here:https://familysearch.org/pal:/MM9.3.1/TH-1-14088-17395-45?cc...