Otto Wittelsbach, often Otto of Bavaria in Hungary, (Burghausen, February 11, 1261 - Landshut, September 9, 1312) Duke of Lower Bavaria between 1290 and 1312 and King of Hungary during the interregnum between 1305 and 1312, although he was deposed in 1307 from his power, so this year is usually considered the end of his reign. His father XIII. Henrik, Duke of Bavaria and Lower Bavaria, his mother Elizabeth, IV. Béla's daughter. Otto came from the German Wittelsbach house, he claimed the Hungarian crown because his mother, Elizabeth IV. She was Béla's daughter. His father XIII. Henry was a Bavarian prince. In Lower Bavaria, the order of succession was not regulated by law, so before their father's death, the younger princes made an oath to hand over the government to Otto for four years. Henrik died on February 3, 1290, and after the prescribed time, Otto and his younger brothers - III. Louis and István I ruled Lower Bavaria together. Otto's first wife was Katalin, the daughter of Rudolf I (Habsburg), but Katalin died on April 4, 1282, and her dowry returned to Rudolf's possession. Queen Ágnes Piast of Hungary (1293/1296 – 25 December 1361) was the second wife of King Otto of Hungary. She was not actually a Hungarian queen, she only held the title, because her spouse could no longer regain her throne. Otto's arrival in Hungary was not without danger, because III. (Habsburg) Prince Rudolph of Austria tried to block the roads leading to Hungary from him. Otto, who fortunately arrived in Hungary, was crowned in Székesfehérvár by bishops Benedek Rád of Veszprém and Antal Csanád of Csánád on December 6, 1305. Although Otto IV. As the grandson of King Béla of Hungary, he formed the right to the Holy Crown, the coronation did not comply with Hungarian customary law, because it was not performed by the senior high priest, due to the absence of the pro-Anjou archbishop Tamás. After the coronation, the new king marched to Buda with his army and – demonstrating that the country has a crowned ruler – walked around the entire city with the Holy Crown on his head. At the beginning of 1307, he went to Transylvania, intending to marry the daughter of the Transylvanian voivode László Kán. László Kán captured the Hungarian king along with the Holy Crown he had with him. Otto was released only after a few months of captivity, with the promise of a ransom, and abandoned his plans to rule Hungary and left for Bavaria. On his return home, the Bavarians celebrated him as a hero, attributing the failure of their ruler to the intrigues of the Austrians. Otto died on September 9, 1312.

King Otto (1305–1307/8) denar was considered one of the rarest pieces of Hungarian medieval coinage, almost his "Holy Grail". The coin image of the related CNH 387 denarius bears a novelty in terms of its obverse, with the crown raised as the central element. Due to the short reign of King Otto dating the type is very simple. In terms of its medal design, it continues the traditions of earlier Hungarian mints and essentially proves the organic continuation of Hungarian coinage in the 13th century, which was often strongly influenced by the Viennese, but in a special way. Its design is very careful, its beautiful round shape, and its well-formed medal images distinguish it from the contemporary Hungarian imitations that bear the carelessness of the Viennese denarii. Due to its rarity, it was also counterfeited.