===Political impetus and initiation of colloquy===
===Political impetus and initiation of colloquy===
−
In the second Diet of Speyer in April 1529, a Roman Catholic majority passed a resolution against the Reformation.
+
In the second Diet of Speyer in April 1529, a Roman Catholic majority passed a resolution against the Reformation.<ref name="Britannica">[https://www.britannica.com/event/Colloquy-of-Marburg Colloquy of Marburg]. ''Encyclopædia Britannica''. Retrieved December 24, 2016.</ref> Philip, the landgrave of [[Hesse]], believed this to be a threat to survival of Protestantism and believed a Protestant political alliance was necessary to protect against any threats.<ref name="Britannica"/> Because the theological disagreement over the Eucharist among Protestants, which had existed since 1524, was preventing such alliances, Philip called the colloquy in order to resolve the issue and clear the way for an alliance.<ref name="Britannica"/>