There is very little known about Radvanas and researchers make educated guesses based on his works. Some biographical data was provided by
Franciszek Siarczyński (1758–1829) but it is unclear where Siarczyński obtained that information as it cannot be verified by researchers. Siarczyński wrote that Radvanas was born and educated in
Vilnius, traveled in Western Europe with the support of
Lithuanian Grand Hetman Hrehory Chodkiewicz, and later worked as Chodkiewicz's secretary. Radvanas was active between 1584 and 1592 which would imply that he was born in the middle of the century. He signed his first published poem as
Joannes Raduanouiuis Vilnensis (i.e. Jonas Radvanas of Vilnius) which could indicate that he was born in the city or the surrounding area, but could also mean that he was just a long-term resident of the city. He was well educated as demonstrated by his excellent knowledge of Roman authors – in his works he referenced
Catullus,
Virgil,
Ovid,
Propertius,
Tibullus,
Cicero,
Statius,
Silius Italicus,
Claudian,
Prudentius, and others. He further cited
Homer and
Hesiod which would indicate he knew
Ancient Greek language. Radvanas' works also demonstrate familiarity with the regimes in France and England which might indicate that he visited or studied in these countries. Lack of any information about his family or any nobles with the same surname indicates that he was not a member of the
Lithuanian nobility. This is further supported by Radvanas texts that promote values like piousness, loyalty, bravery that were more important to commoners (as opposed to nobility, family tradition, or honor). He was likely a
Lithuanian speaker as he included a few Lithuanian words in the margins of
Radvilias. Radavanas was closely associated with the supporters and activists of the
Protestant Reformation in Lithuania. His works were published by the Calvinists and a
Jesuits satire from 1590 mentioned him as one of their opponents. They attacked his polemic satirical work
Theses Theologicae after a Calvinist synod in Vilnius. Radvanas disappears from written records in 1592. It is probable that he died in a plague epidemic that swept Vilnius that year. == Works ==