Burg Pfalzel, Medieval castle in Pfalzel, Germany

Burg Pfalzel is a former castle of the Trier archbishops, built from about 1131–52 under Albero von Montreuil over the southwest wing of the Roman Palatiolum. It took a nearly rectangular form as a moated castle; the only access to the medieval core was the gate tower that still stands. Much of the complex is now built into houses along Burgstraße, where wall remains, a stair-tower stump and a gate tower with the arms of Archbishop Johann II of Baden survive.

Archbishop Albero of Trier commissioned the castle in the 12th century as his residential stronghold. It rose on the site of an earlier Roman structure and later faced military challenges that tested its defensive design.

The gate tower between Burgstraße 5 and 6 carries two coats of arms of Archbishop Johann II of Baden (1450–1503), a detail to look for while walking the street. The former castle economy yard survives as open ground, with the former tithe barn at Residenzstraße 22 and Genovevastraße 6a. The castle also owned the Stiftsmühle, also called Burg-, Bann- or Kurfürstenmühle, fed by the Mühlengraben from the Loricher Bach.

The former castle lies in the southwest part of the Roman Palatiolum, within Trier-Pfalzel. Remains are built into the houses along Burgstraße 2–10 and at Kirchplatz 4 and 10, so the site is seen from the street rather than as a separate enclosure. The gate tower with two coats of arms of Archbishop Johann II of Baden stands between houses 5 and 6.

The gate tower between houses at Burgstraße 5 and 6 carries two coats of arms of Archbishop Johann II of Baden, who held office from 1450 to 1503. Much of the castle survives inside ordinary dwellings: the hall's cellar vault and walled-up cross-mullioned windows are in a barn at Stiftstraße 10, dated 1695.