Gerard Adriaan was born in Nijmegen on March 4, 1812.
You can see that he is registered as Gerard Adrien Wiltens, while his father signs as JFH Andrée Wiltens Gz.
In the margin next to this, there's a whole story with the date: 1856.

A quick jump in time: in 1856, Adriaan (Adrien) indicated that his surname was Andrée Wiltens, and apparently, this was corrected in the civil registry "by judgment of the district court"!