Conrad III of Dhaun

Conrad III of Dhaun
Noble family	vom Stein
Father	John II of Stein-Dhaun
Mother	Jutta of Leiningen
Born	c. 1380
Died	1434
Buried	10 June 1434 Mainz Cathedral

Conrad of Dhaun (c. 1380 – 1434) was a German nobleman. His relatives were the Wild- and Rhinegraves of Dhaun. He was Archbishop and Prince-elector of the Bishopric of Mainz from 1419 until his death as Conrad III. His term was marked by the Hussite wars and by serious disputes with the Landgraviate of Hesse and within the city of Mainz.

Konrad was appointed canon in Mainz in 1396. In 1414, he became provost of Frankfurt Cathedral and governor of the Eichsfeld (an exclave of the Bishopric of Mainz). The residence of the governor was Rustenberg Castle, near Heiligenstadt. On 10 October 1419, he was elected archbishop of Mainz, and his election was confirmed by Pope Martin V on 15 December 1419. In this period, the residence of the Archbishops of Mainz was Ehrenfels Castle, now in Hesse, because the citizens of Mainz, which was a free imperial city, were hostile to the clergy.

In August 1421, Conrad, together with Archbishop Dietrich II of Cologne and Elector Palatine Louis III, joined the Second anti-Hussite Crusade. They traveled to Bohemia via Cheb and participated in the siege of Žatec. However, the siege ended on 2 October when the imperial army fled after rumours spread that a large Hussite relief army was approaching.

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