Arnold Johan Messenius (Gdansk, 1607 - Stockholm, 1651) was a Swedish enfant terrible and Rikshistoriograf who was condemned to death and executed under the reign of Christina, Queen of Sweden.
Arnold was the son of the historian Johannes Messenius. He spent much of his youth in the fortress of Kajaneborg in Arctic Finland, where his father had been imprisoned on suspicion of being a Catholic and collaborating with the king of Poland Sigismund III Vasa and the Jesuits.[1] His father was sentenced to death in July 1616, but the king changed the sentence to prison, probably for life. Messenius wrote during his imprisonment Scandia illustrata, a history of the Nordic countries in fourteen volumes, which treated Sweden's history from the deluge to Messenius' own time.[2]
Arnold had a restless adolescence. In 1621, at the age of 14 years, the Swedish authorities locked him up in Uppsala in a boarding school run by Lutherans. He was forced to flee (1623) for being accused of what seems to be accidental killing a classmate during a dispute and, after an adventurous escape through Norway and Denmark, he arrived in Gdansk, where he was welcomed by his mother's family. In October 1623 he was accepted at the prestigious Jesuit Collegium Hosianum in Braunsberg (Poland), where also his father had studied, but, indisciplined, he left shortly afterwards. After wandering in Prussia, Poland, Silesia, Bohemia and Austria, he returned to Sweden in July 1624 in the wake of Krzysztof Radziwiłł, a noble Lithuanian Protestant and opponent of Gustav II Adolf of Sweden. In Sweden, the boy was brought to trial on charges of spying for Poland; the process, during which he was accused of defending his father, ended with the death sentence of Arnold Johan, as a traitor. He was pardoned by King Gustav II Adolf and in 1626 sent to Kexholm as a prisoner.
He was pardoned 14 years later, in 1640 through Count Per Brahe, the gouvernor of Swedish Finland and went to Stockholm to obtain any employment in government service. He was arrested in August at the Danish border and put into the Stockholm jail. The Councils instructed him to go to Poland and find the manuscript «Scandia illustrata», left there by his mother after his father's death. Messenius was able to fulfill this mission and found a number of curious Swedish documents. Arnold Johan was instructed to write an official history of Sigismund and Charles IX's reign and won a generous patronship by the admiral Carl Carlsson Gyllenhielm. In 1645 he was appointed royal historian by Queen Christina, and peered, but he had not the talent of his father for history, nor his critical instinct, nor perseverance and hard work. When Christina ordered him, after a scandal, to supply his sister with some of the fiefs, the animosity started.
So in 1649 and 1650 he made connections with opposition leaders ("Messen conspiracy") and Swedish noblemen became afraid.[3] Messonius wrote some satires on Axel Oxenstierna and accused Christina of serious misbehavior and being a Jezebel for which he was beheaded together with his 17 year old son.[4][5]