Simplify the following text for a Grade 7 native English-speaking person.
Original: Wazner , also Wazenez or Wadjenedj , was a Predynastic Egyptian king who ruled in the Nile Delta .
Simplified: Wazner , also Wazenez or Wadjenedj ( or possibly Wenegbu ? ) , was a Predynastic Egyptian king who ruled in the Nile Delta .