Wittenberg Concord is a religious concordat

Concordat

A concordat is an agreement between the Holy See of the Catholic Church and a sovereign state on religious matters. Legally, they are international treaties. They often includes both recognition and privileges for the Catholic Church in a particular country...

 signed by Reformed

Reformed churches

The Reformed churches are a group of Protestant denominations characterized by Calvinist doctrines. They are descended from the Swiss Reformation inaugurated by Huldrych Zwingli but developed more coherently by Martin Bucer, Heinrich Bullinger and especially John Calvin...

 and Lutheran

Lutheranism

Lutheranism is a major branch of Western Christianity that identifies with the theology of Martin Luther, a German reformer. Luther's efforts to reform the theology and practice of the church launched the Protestant Reformation...

 theologians and churchmen on May 29, 1536 as an attempted resolution of their differences with respect to the Real Presence

Real Presence

Real Presence is a term used in various Christian traditions to express belief that in the Eucharist, Jesus Christ is really present in what was previously just bread and wine, and not merely present in symbol, a figure of speech , or by his power .Not all Christian traditions accept this dogma...

 of Christ's body and blood in the Eucharist

Eucharist

The Eucharist , also called Holy Communion, the Sacrament of the Altar, the Blessed Sacrament, the Lord's Supper, and other names, is a Christian sacrament or ordinance...

. The Reformed who signed it were Martin Bucer

Martin Bucer

Martin Bucer was a Protestant reformer based in Strasbourg who influenced Lutheran, Calvinist, and Anglican doctrines and practices. Bucer was originally a member of the Dominican Order, but after meeting and being influenced by Martin Luther in 1518 he arranged for his monastic vows to be annulled...

, Wolfgang Fabricius Capito

Wolfgang Fabricius Capito

Wolfgang Fabricius Capito was a German religious reformer-His life and work:Capito was born in born of humble parentage at Haguenau in Alsace....

, Matthäus Alber, Martin Frecht, Jakob Otter, and Wolfgang Musculus

Wolfgang Musculus

Wolfgang Musculus, born "Müslin" or "Mauslein", was a Protestant theologian of the Reformation.-Life:...

. The Lutherans

Lutheranism

Lutheranism is a major branch of Western Christianity that identifies with the theology of Martin Luther, a German reformer. Luther's efforts to reform the theology and practice of the church launched the Protestant Reformation...

 who signed were Martin Luther

Martin Luther

Martin Luther was a German priest, professor of theology and iconic figure of the Protestant Reformation. He strongly disputed the claim that freedom from God's punishment for sin could be purchased with money. He confronted indulgence salesman Johann Tetzel with his Ninety-Five Theses in 1517...

, Philipp Melanchthon

Philipp Melanchthon

Philipp Melanchthon , born Philipp Schwartzerdt, was a German reformer, collaborator with Martin Luther, the first systematic theologian of the Protestant Reformation, intellectual leader of the Lutheran Reformation, and an influential designer of educational systems...

, Johannes Bugenhagen

Johannes Bugenhagen

Johannes Bugenhagen , also called Doctor Pomeranus by Martin Luther, introduced the Protestant Reformation in the Duchy of Pomerania and Denmark in the 16th century. Among his major accomplishments was organization of Lutheran churches in Northern Germany and Scandinavia...

, Justus Jonas

Justus Jonas

Justus Jonas was a German Lutheran reformer.-Biography:Jonas was born at Nordhausen in Thuringia. His real name was Jodokus Koch, which he changed according to the common custom of German scholars in the sixteenth century, when at the University of Erfurt...

, Caspar Cruciger

Caspar Cruciger

Caspar Cruciger is name of two Lutheran theologians of the Protestant Reformation:*Caspar Cruciger the Elder*Caspar Cruciger the Younger...

, Justus Menius

Justus Menius

Justus Menius was a German Lutheran theologian, whose name is Latinized from Jost or Just Menig.-Early life:...

, Friedrich Myconius

Friedrich Myconius

Friedrich Myconius was a German Lutheran theologian. He was a colleague of Martin Luther....

, Urban Rhegius, George Spalatin

George Spalatin

Georg Spalatin was the pseudonym taken by Georg Burkhardt , an important German figure in the history of the Reformation....

. This document defined the doctrine of the Real Presence

Real Presence

Real Presence is a term used in various Christian traditions to express belief that in the Eucharist, Jesus Christ is really present in what was previously just bread and wine, and not merely present in symbol, a figure of speech , or by his power .Not all Christian traditions accept this dogma...

 of Christ's body and blood in the Eucharist

Eucharist

The Eucharist , also called Holy Communion, the Sacrament of the Altar, the Blessed Sacrament, the Lord's Supper, and other names, is a Christian sacrament or ordinance...

 as the Sacramental Union

Sacramental Union

Sacramental union is the Lutheran theological doctrine of the Real Presence of the body and blood of Christ in the Christian Eucharist....

 and maintained the real eating of the body and blood of Christ by "unworthy communicants" (manducatio indignorum). Martin Bucer

Martin Bucer

Martin Bucer was a Protestant reformer based in Strasbourg who influenced Lutheran, Calvinist, and Anglican doctrines and practices. Bucer was originally a member of the Dominican Order, but after meeting and being influenced by Martin Luther in 1518 he arranged for his monastic vows to be annulled...

would later disavow his subscription to this document.