Isidore of Seville in Wikipedia

Saint Isidore of Seville (Spanish: San Isidro or San Isidoro de Sevilla, Latin: Isidorus Hispalensis) (c. 560 – 4 April 636) was Archbishop of Seville for more than three decades and is considered, as the historian Montalembert put it in an oft- quoted phrase, "le dernier savant du monde ancien" ("the last scholar of the ancient world").[2] Indeed, all the later medieval history-writing of Hispania (the Iberian Peninsula, comprising modern Spain and Portugal) was based on his histories. At a time of disintegration of classical culture,[3] and aristocratic violence and illiteracy, he was involved in the conversion of the royal Visigothic Arians to Catholicism, both assisting his brother Leander of Seville, and continuing after his brother's death. He was influential in the inner circle of Sisebut, Visigothic king of Hispania. Like Leander, he played a prominent role in the Councils of Toledo and Seville. The Visigothic legislation which resulted from these councils is regarded by modern historians as exercising an important influence on the beginnings of representative government...