Unser lieben Frauen Abbey

After the introduction of the Reformation in 1540 in the Archdiocese of Magdeburg and thus also in Jüterbog, only the Gothic winged Marian altar in the choir remained of the church's seven altars. The artistically valuable Gothic chalice-shaped baptismal font with a large basin, dating from around 1480, was also continued to be used by Protestants, although it was later covered with a baptismal bowl.

In 1575, bailiff Leopold von Klitzing donated the sandstone pulpit. The sculptor Georg Schröter from Torgau, well-known at the time, designed it with great artistic expressiveness. Schröter also created the pulpit of the Mönchenkirche in Jüterbog. Besides the depiction of the four Evangelists with their symbols, the two reformers Martin Luther and Philipp Melanchthon in the pulpit basket are particularly noteworthy. This is presumably the oldest depiction of the two reformers on any pulpit. On the pulpit ascent, the coats of arms of the von Klitzing family and Christ with the globe are recognizable.

An epitaph (tombstone) for bailiff Leopold (also Lipold) von Klitzing (the Elder) was erected in 1562, located in the choir on the east wall (behind the altar to the right). The other two epitaphs were created for the wife of bailiff Johann Heinrich Ritter (1733) and bailiff Friedrich Christian Krebs (1777, above the lectern). Six other people are buried in the Liebfrauenkirche in the choir area and near the pulpit.

The Marian altar was replaced in 1710 by ducal order with the Baroque altar that still exists today. This shows the iconographic program typical for this period and region: In the predella, the Last Supper of Jesus with his disciples, above it a depiction of a scene from the Passion story, here Jesus' prayer in the Garden of Gethsemane, flanked by columns. Framed by palms and flanked by angels with instruments of suffering, above it is the Resurrection of Christ, and above that, looking through clouds, the "Eye of God" as a sign of God's presence, and in the halo, the triangle as a symbol of the Trinity of God. The altar is crowned by a glory. In the triangle, the Christogram XP (Greek Chi and Rho) can be seen, and the Greek Alpha and Omega for beginning and end (first and last letter of the Greek alphabet).

At the consecration of the altar in 1418, there was already an organ in the church. The current organ was built in 1737 by the Berlin organ builder Joachim Wagner, and – donated from the inheritance of a Jüterbog long-distance merchant – is still almost original in its Baroque form. The organ case was made by the Jüterbog sculptor Johann Angermann. The intertwined letters J/A in the cartouche above the pipework are, however, said to refer to Duke Johann Adolph II of Weißenfels, the sovereign responsible for Jüterbog at the time. Changes to the church occurred through extensive renovations.

In 1890/91, in addition to a partial renewal of the masonry, the roof truss was renovated, the tower was built, the pews were renewed, and the organ gallery was lowered by 2 ½ meters and enlarged. A Berlin company created two colored choir windows with a total of four panels. Looking towards the altar, Moses can be seen in the left window, raising a metal serpent on a staff as a sign of life during the deadly snake plague in the desert. Next to it, as a counterpart, is the erected cross of Jesus as a sign of eternal life. In the second window, to the right of the altar, are images of the Resurrection and Ascension of Jesus Christ.

In 1936/38, in addition to a repainting, the wooden ceiling was restored according to an old pattern. The princely box above the door in the north wing of the transept was removed. In 1971/72, an interior renovation was carried out in preparation for the 800th anniversary of the church's consecration. The organ was also partially restored. During this time, a community room was set up under the organ gallery as a winter church with gas heating, and electric pew heating was installed in the main nave.

After its deconsecration in 1966, the following paintings from the Mönchenkirche came to the Liebfrauenkirche (orientation looking at the altar): Left aisle (from left): Jeremias Crudelius (1711–1743), from 1738 deacon and rector of the grammar school, from 1740 pastor M. Johann Christian Crudelius (1697–1738), his brother, from 1724 assistant preacher to his father M. Johann Abraham Crudelius, after whose death from 1725 to 1738 successor in the Liebfrauen-Mönchen parish. Below: Family of M. Johannes Pilichen (1577–1599), from 1600 pastor at St. Nikolai. Right aisle: Martin Luther and Philipp Melanchthon, opposite another portrait of M. Johann Pilichen (buried in the Mönchenkirche in 1611).

Of the three bells, the oldest, cast by Hans Baudicke, dates from 1471. The smallest is no longer rung due to a crack. In addition, the two former bells from the Mönchenkirche chime with the striking of the Liebfrauenkirche's tower clock.

Only a remnant of the church's medieval painting remains in the last southern window arch of the central nave, possibly showing the Man of Sorrows between angels.