García Sánchez III of Pamplona

García Sánchez III, called of Nájera (c. 1012–1054), succeeded his father Sancho III as king of Pamplona in 1035, ruling Álava and part of Castile as overlord to his brothers Ramiro and Gonzalo.

In 1037 García and his brother Ferdinand defeated and killed Bermudo III of León at Tamarón. He defeated Ramiro in 1043, fixing the eastern border, and took Calahorra in 1045 from the weakened Muslim taifa kingdoms.

His feud with Ferdinand, now king of León, over Castilian lands ended at the battle of Atapuerca, where García was killed on 1 September 1054.