Some Heraldic "Old Friends" in Heidelberg, Germany

Leaving Heidelberg Castle and going down into the Old City of Heidelberg itself, I ran across some familiar heraldry there.

These two, seen inside the Holy Spirit Church (Heiliggeistekirche) you may recognize, too:

The arms of the Palatine (Rheinland-Pfalz) and Bavaria (Bayern), on separate shields on a pillar ...

... and as quartered arms on a ceiling boss:

Another coat of arms that we've seen before are the arms of Baden (Or a bend gules), found here on a stained glass window:

It's always fun to look around and recognize some coats of arms as "old friends" with which we are familiar!