Simplify the following text for a Grade 10 native English-speaking person.
Original: Iturbide , a native of Valladolid , had gained renown for the zeal with which he persecuted Hidalgo 's and Morelos 's rebels during the early independence struggle .
Simplified: Iturbide was famous for the way in which he went after Hidalgo 's and Morelos 's rebels during the early independence struggle .