View of Zwiefalter Tor from the Marketplace

The Zwiefalter Gate
The only surviving city gate that originally wasn't one is the Zweifalter Tor. This is not immediately apparent to strangers. Originally, this building was the cemetery chapel of St. Michael including the ossuary. A mass was donated to the altar of the tomb as early as 1363. In 1415, Johann Mesner, born in Riedlingen, master of the arts and teacher of medicine in Nuremberg, expanded the foundation into a preacher position for the new chapel on the ossuary. The so-called middle mass (read between morning and parish mass) was read daily and could therefore be occupied by a permanent chaplain. Thus, the chapel standing on the eastern part of the former Gottesacker (today's Zwiefalter Tor) dates from 1415 and was - as almost everywhere with Gottesacker chapels - dedicated to St. dedicated to Michael. According to medieval ideas, Michael escorts the soul of the deceased to paradise and helps her at the Last Judgment. He is almost always depicted with the soul balance. In 1678 Margarethe Gluiz donated a new altar in the chapel. Whether the wooden sculpture of St. Michael dates from this foundation or, more likely, from the early 18th century remains open.
In 1787 the cemetery had to be moved away from the church outside of the city to the current location. The Michaelskapelle including the ossuary was dissected and broken through as a gate in 1804 and the sacristan's apartment built in on the upper floor. With the construction of Zwiefalter Straße, a new exit and access to the east was created to relieve the very cramped conditions at the Mühlturm. This idea was accelerated by the market square fire in 1804. At that time, the passage was given the name "New Gate", later Zwiefalter Tor. At the time of the breakthrough, the other three "real city gates", the Danube or Brucktor, the Weiler or Untere Tor, also known as the Gammertinger Tor, and the Mühlturm or the Schlachttor still existed. From 1834 the gates were no longer closed.Source: buergerwehr-riedlingen.de/B%C3%BCrgerwehrheim.html

The only city gate still preserved today, which was not originally one, is the Zwiefalter Gate. This is not immediately apparent to the stranger. Originally, this building was the cemetery chapel of St. Michael with ossuary.
In 1787 the cemetery had to be moved away from the church outside the city to its present location. The Michael's chapel and ossuary were excised and broken through as a gate in 1804, and the sacristan's apartment installed on the upper floor. With the creation of Zwiefalter Strasse, a new exit and access to the east was created to relieve the very cramped conditions at the Mühlturm. This idea was accelerated by the fire in the market square in 1804. At that time, the passage was named "Neues Tor", later Zwiefalter Tor. See buergerwehr-riedlingen.de/Bürgerwehrheim.html