Complex sentence: The chronicle of Henry of Mügeln documented that the newly crowned King granted one-third of the Kingdom of Hungary to Stephen with the title of duke, while historian Florin Curta specified that Stephen's duchy included the southern regions of the kingdom.
Split into simpler sentences: The chronicle of Henry of Mügeln narrates that the newly crowned King granted one-third of the Kingdom of Hungary to Stephen with the title of duke. Historian Florin Curta writes that Stephen's duchy included the southern regions of the kingdom.