It´s difficult to see where a mistake was made without a scan of the official document. The remark "Notabene: Overleden echtg. van Jan van den Brand" is very confusing. Did they make a mistake and referred to her husband, in which case it should be 'is' instead of 'van'? If they didn't abbreviate 'echtg.' it would have been clear.
It could also be that a transcribent who added the meta-data to the online file, made a mistake (not very likely as it gets checked several times).
If you want to be really clear about it, you need to go to the source: in this case the file from the Schepenbank.
My guess would be that it's a case of poor wording and that Catharina Joordens died in 1817. Btw Jan died 13-01-1795 in Bergeijk:
https://www.rhc-eindhoven.nl/collectie?mivast=48&miadt=48&miaet=54&micode=DTB_Bergeijk_10225_3.15&minr=12000225&miview=ldt