Ján Baltazár Magin, born in Vrbové on 6th January 1681, was a priest, poet and writer. He studied theology in Pázmáneum and Vienna then, after taking Holy Orders, Magin became a priest in Jarok, Košeca and Dubnica nad Váhom. In 1731 he was made titular Canon of the Nitra diocese. He died on 27th March 1734 in Dubnica nad Váhom.
Magin was educated in clerical and civil law, antique culture and literature. His acclaimed poetry and writings brought him to the attention of the aristocracy, clergy and citizens of Trenčín, who had been outraged by the Novissima diaete nobillissime, written by Michal Benčik, a professor of Law at the university of Trnava. Believing that Benčik was libellous and demeaning of the local people, they beseeched Magin to write in defence of a Slovak identity. Consequently Magin wrote his most significant work: Murices ... sive Apologia, in which he was the first to advocate the rights of Slovaks to their own identity as an ethnic group with their own language and defined territorial borders. In Throns or defence Magin illuminates the ancient history of Trenčin and emphasises the importance and the glorious past of the Slavs and Slovaks in Hungary.
The stamp shows an engraved portrait of J. B. Magin. The FDC depicts the first page of Murice ... sive Apologia and the cancellation is a facsimile of this famous Slovak's signature.