Saint Isidore of Seville is the patron of computers, schoolchildren, and the Internet. He followed his brother in becoming archbishop of Seville. Saint Isidore of Seville is noted for enforcing reforms including requiring seminaries in every diocese and writing a rule for religious orders. He also completed the Mozarabic liturgy which is still used in Toledo, Spain today. Saint Isidore of Seville was proclaimed a Doctor of the Church by Pope Benedict XVI. St. Isidore of Seville's feast day is April 4th.