Bishop Johannes Müller
(1436-1476)

Died aged c. 40

Johannes Müller von Königsberg (6 June 1436 – 6 July 1476), today best known by the Latin epithet Regiomontanus, was a German mathematician, astronomer, astrologer, translator, instrument maker and Catholic bishop. He was born in the Franconian village of Unfinden, now part of Königsberg, Bavaria — not in the more famous East-Prussian Königsberg. He was also known as Johannes der Königsberger (Johannes of Königsberg). His writings were published under the name of Ioannes de Monte Regio, a Latinized version of his name. Both names mean "John of King's Mountain". The name "Regiomontanus" was first coined by Philipp Melanchthon in 1534, fifty-eight years after Regiomontanus' death.

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Commemorated on 3 plaques

Dem Andenken des großen Mathematikers Regiomontanus geboren in diesem Hause den 6. Juni 1436, gestorben als Bischof von Regensburg den 6. Juli 1476. gewidmet von den Bürgern seiner Vaterstadt den 6. Juli 1876.

Salzmarkt (No. 6), Königsberg, Germany where they was born (1436)

Johannes Müller Regiomontanus [full inscription unknown]

Castle museum, Esztergom, Hungary where they was

Zur Erinnerung an den Gründer der ersten deut- schen Sternwarte - den Ma- thematiker u. Astronomen Johannes Müller gen. Regiomontanus geb. 6.6.1436 - gest. 6.7.1476

Regiomontanus Observatory, Nürnberg, Germany where they was