Pedro Ponce de Cabrera (died 1248/1254), was a magnate from the Kingdom of León, son of Ponce Vela de Cabrera and his wife Teresa Rodríguez Girón, daughter of Rodrigo Gutiérrez Girón and his first wife María de Guzmán. From his marriage to Aldonza Alfonso of León, illegitimate daughter of Alfonso IX and his mistress Aldonza Martínez de Silva, «...would descend one of the most important Spanish families of the Late Middle Ages, the Ponce de León, so relevant in the conquest of Andalusia where they were to receive over time the marquisate of Cádiz and duchy of Arcos».
Probably born near the end of the 12th century as he appears described in a document in July 1202 as a minor, Pedro Ponce de Cabrera was an important magnate during the reigns of King Alfonso IX, whom he served as his alférez, and of his successor, Ferdinand III of Castile. In February 1221 he was part of the entourage that accompanied Infanta Eleanor of Castile, daughter of King Alfonso VIII of Castile, to Ágreda for her wedding with King James I of Aragon.
He played an active role in the reconquista campaigns of King Fernando III in Andalusia and fought against the moors in Seville, Lora del Río and Marchena. After the conquest of Córdoba in 1236, he was awarded land in the repartimiento while his son, also benefited a few years later, in 1248 from the partition and distribution of land after the conquest of Seville.