Karen Radel, in a post (in this thread) prior to mine, is the person who mentioned the certificate.
I have a researcher in the Bavarian region who is going to send me a marriage certificate copy of Anna Maria Lampe and Martin Gehling. My branch is Roman Catholic. However, the little closeted skeletal tidbit I unearthed through my researcher is that Anna Maria's firstborn was out of wedlock with Martin Gehling. My ancestor, Michael, was the 2nd born, in wedlock. The firstborn was named Walburg. I will share more info when it becomes available.