Bishop Johannes Müller
(1436-1476)

mathematician, Bishop of Regensburg, and astronomer

Died aged c. 40

Johannes Müller von Königsberg (6 June 1436 – 6 July 1476), better known as Regiomontanus (/ˌriːdʒioʊmɒnˈteɪnəs/), was a mathematician, astrologer and astronomer of the German Renaissance, active in Vienna, Buda and Nuremberg. His contributions were instrumental in the development of Copernican heliocentrism in the decades following his death. Regiomontanus wrote under the Latinized name of Ioannes de Monteregio (or Monte Regio; Regio Monte); the toponym Regiomontanus was first used by Philipp Melanchthon in 1534. He is named after Königsberg in Lower Franconia, not the larger Königsberg (modern Kaliningrad) in Prussia.

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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