What was the major halachic guide(s) followed by the Sephardim prior to the Expulsion in 1492?

Modern Sephardi practice is heavily influenced by the Shulchan Aruch and Bet Yosef, but these in turn were heavily influenced by North African authorities (Rif, Rambam etc). So did the communities of the Iberian peninsula mostly rely on them, or did they follow their own local codes?