House of Castile (Royal)
“Non plus ultra”
Origin: Kingdom of Castile
The royal House of Castile descended from Ferdinand I, first King of Castile, through the Jiménez and later Burgundy dynasties. Castile grew from a small county into the largest and most powerful kingdom in Iberia, driving the Reconquista southward and eventually absorbing León, Toledo, Córdoba, Seville, and Murcia.