Leo "the Wise", everyone.

Emese's Dream by Mihaly Buday 20th-21st C. CE

"They [the Hungarians] were allied with the Eastern emperor, Leo VI (the wise), who was trapped in the vise of combined Islamic and Bulgar assaults that came dangerously close to his capital on the Bosporus. A bold counterattack, however, saved the city of Constantine. The Byzantine fleet ferried Hungarians into Bulgar territory as Khan Simeon's forces arrived at the very gates of Constantinople. Consequently, the Bulgarian ruler found it necessary to end the siege and turn his attention to the Magyars who were marauding in his territory. This maneuver allowed Eastern imperial armies to save their capital. After defeating Islamic forces and making peace with the Bulgars, Leo left his erstwhile allies (the Hungarians) in the lurch..."

Read more: https://paganimagevault.blogspot.com/2024/05/emeses-dream-by-mihaly-buday-20th-21st.html

Tsar Simeon I of Bulgaria fleeing from the Magyars, from the Madrid Skylitzes manuscript. Manuscript dated to 11th-13th C. CE.

At the time of the Byzantine–Bulgarian war of 894–896 CE the Hungarians/Magyars were living in Etelkoz, a state around the northern Black Sea where parts of Ukraine, Moldova, and Romania are today. The Magyars joined in on the side of the Roman defenders against the Bulgarian invaders. While the Roman navy ferried the Magyars into Bulgarian territory, the majority of the Roman army was busy fighting the Arabs in the east. The Roman forces that remained had already been defeated by the Bulgarians when the Magyars arrived. The Russian Primary Chronicle states that the Magyars then conquered Bulgaria...

Read more: https://paganimagevault.blogspot.com/2024/05/tsar-simeon-i-of-bulgaria-fleeing-from.html