Simplify the following text for a Grade 8 native English-speaking person.
Original: The Ottonian dynasty was a dynasty of Germanic Kings ( 919-1024 ) , named after its first emperor but also known as the Saxon dynasty after the family 's origin .
Simplified: Ottonian dynasty was a dynasty of kings of Germany , named after its first emperor Otto I the Great . But it is also known as the Saxon dynasty after the origin of this family of noblemen .