From the Latin vocabulary word meaning ‘queen’. It was occasionally used as a given name among the early Christians; a St Regina, probably of the 3rd century, was venerated as a virgin martyr at Autun from an early date. In modern use it is normally borne by Roman Catholics in allusion to the epithet Regina Coeli ‘Queen of Heaven’, a cult title of the Virgin Mary since the 8th century.
Spanish and Portuguese: nickname ((del) Sol) for someone with a cheerful disposition, from sol ‘sun’ (Latin sol), but more likely from the female personal name Sol, of the same meaning and derivation or possibly in some cases from the Marian epithet (María del Sol). This name was frequent among Jews in Spain.