Simplify the following text for a Grade 8 native English-speaking person.
Original: The city is named after Juan Ponce de LeÃ n y Loayza , the great-grandson of Spanish conquistador Juan Ponce de LeÃ n.
Simplified: The city was named after Juan Ponce de LeÃ n y Loayza , the grandson of Spanish conquistador Juan Ponce de LeÃ n.