Original sentence: Ahtum (Bulgarian and Serbian Cyrillic: Ахтум; Hungarian: Ajtony; also spelled Ohtum or Achtum) was an early 11th century voivod (duke) of Banat (now mostly divided between Romania and Serbia) and a descendant of Glad, another local duke and governor in the First Bulgarian Empire.Various sources mention that Ahtum was vassal of the Bulgarian/Macedonian Empire, vassal of the Kingdom of Hungary and independent ruler
Edited sentence: Ahtum (Bulgarian, and Serbian Cyrillic: Ахтум; in Hungarian: Ajtony; also spelled Ohtum or Achtum) was an early 11th century voivod (duke) of Banat (now mostly divided between Romania and Serbia) and a descendant of Glad, another local duke and governor in the First Bulgarian Empire.Various sources mention that Ahtum was vassal of the Bulgarian Empire, vassal of the Kingdom of Hungary and independent ruler