Keywords: Anonymous Valeriano Magni.jpg Prague ca 1624 oil canvas cm 194 5 93 5 Institution National Museum Warsaw Royal Castle in Warsaw accession number ZKW-351 Dep MNW 188129 object history provenanceEvent transfer Bożków Palace provenanceEvent deposit Royal Castle in Warsaw National Museum in Warsaw credit line Frater Valerianus de Magnis Provincialis Capuccinensum ordinis fratrum minor aetatis suae annorum 38 caption bottom left A capuchin monk Valeriano Magni Valerian von Magnis 1586-1661 aged 38 according to inscription was a brother of Francesco Magni Franz von Magnis 1598-1652 and a diplomat at the court of Ladislaus IV Vasa In July 1647 he performed a vacuum experiment so-called Torricelli's experiment before a distinguished audience at the Royal Castle in Warsaw Mieczysław Subotowicz 1988 http //bazhum muzhp pl/media/files/Kwartalnik_Historii_Nauki_i_Techniki/Kwartalnik_Historii_Nauki_i_Techniki-r1988-t33-n2/Kwartalnik_Historii_Nauki_i_Techniki-r1988-t33-n2-s485-494/Kwartalnik_Historii_Nauki_i_Techniki-r1988-t33-n2-s485-494 pdf Portret i pochodzenie Waleriana Magniego 1586-1661 in Kwartalnik Historii Nauki i Techniki 33/2 pp 485-494 See below PD-old-100 DEFAULTSORT 1624 circa; Valeriano Magni Portrait of Valeriano Magni National Museum in Warsaw |