Ivan Tomko Mrnavià(1580âÂÂ1637) was a Venetian Croat who, as a Catholic prelate, served as Bishop of Bosnia (1631âÂÂ1635), and was an author of historical works forgeries with dubious reliability.
Born in à  ibenik, Mrnaviàstudied in the local Church seminary and completed his theological studies in Rome by 1603, and three years later was appointed as canon and bishop's attorney of à  ibenik, and in 1627 as canon and archdeacon of Zagreb. He published Glagolithic books as part of the work of the Congregation for the Evangelization of Peoples in 1622. In 1631, Mrnaviàwas appointed during the papacy of Pope Urban VIII as Bishop of Bosnia, serving until 1635.
His historical works have low value and often were forgeries, like Discorso dell' priorato della Wrana (1609), Vita Justiniani (1619), Vita Berislavi Bosnensis episcopi Vesprimensis Dalmatiae, Croatiae, Slavoniae Bosnaeque bani (1620, plagiarism of Antun VranÃÂiÃÂ's work on Petar BerislaviÃÂ), and some value has his documentary description of Bosnia (1627). Psalter of Nicholas of Rab, long thought to be a 1222 original, it was proven a forgery by Vatroslav JagiÃÂ in 1909 after being sent photographs of the manuscript by .
His literary works were written in the Chakavian dialect, including drama Osmanà ¡ÃÂica (1631) and poem à ½ivot Magdalene od knezov Zirova plemena Budrià ¡iÃÂa (1626).
MrnaviÃÂ in De Illyrico caesaribusque Illyricis (1603) wrongly believed that the Slavs were native Illyrians as well as Thracians and other ancient peoples and Roman emperors born in the Balkans. He considered that Saint Jerome was the author of Glagolithic alphabet. Through forgeries and false genealogies, MrnaviÃÂ also tried to relate his family to the Serbian Royal NemanjiÃÂ dynasty and MrnjavÃÂeviÃÂ family.
He claimed that Skanderbeg, the national hero of Albania, was of Slav origin, which prompted Frang Bardhi to write a biography on Skanderbeg published in Venice in 1636 as a polemic against him, defending the Albanian identity of Skanderbeg.
While bishop, Marnavich was the principal co-consecrator of:
His works written in Latin include:
His works written in the Chakavian dialect of Croatian language include: