Ponce is both a city and a municipality in the southern part of Puerto Rico. The city is the seat of the municipal government. The city of Ponce, the second largest in Puerto Rico outside of the San Juan metropolitan area, is named for Juan Ponce de León y Loayza, the great-grandson of Spanish conquistador Juan Ponce de León. Ponce is often referred to as La Perla del Sur (The Pearl of the South), La Ciudad Señorial (The Noble, or Lordly, City), and La Ciudad de las Quenepas (Genip City). The city serves as the governmental seat of the autonomous municipality as well as the regional hub for various Government of Puerto Rico entities, such as the Judiciary of Puerto Rico. It is also the regional center for various other Commonwealth and federal government agencies. The Municipality of Ponce, officially the Autonomous Municipality of Ponce, is located in the Southern Coastal Plain region of the island, south of Adjuntas, Utuado, and Jayuya; east of Peñuelas; west of Juana Díaz; and bordered on the south by the Caribbean Sea.