Are there any other programming languages designed by Pontifical Catholic Universities?

Almost certainly! The one here in Argentina has campuses in six cities and is well regarded, though it doesn't rank well in worldwide rankings. It has 24000 students at any given time, with alumni including the Queen of the Netherlands and one of the founders of OLX. It seems likely that the number of programming languages designed by one or another professor or student there at one time or another is in the dozens. One repo I found on GitHub uses a dialect of Smalltalk I'm not familiar with, but I don't know if it originates at the university: https://github.com/uca-argentina/2021-bigtalkers/blob/master...

The PUC in Santiago de Chile is even better, academically, and has some 34000 students at any given time.

It would be very surprising if different languages originating from these universities had significant design features in common!