Saint Isidore of Seville was a prominent scholar and theologian in the 6th and 7th centuries. He served as the Archbishop of Seville and is best known for his extensive writings, including the "Etymologiae," an encyclopedia that compiled knowledge from various fields such as history, science, and theology. His work played a significant role in preserving classical knowledge during the Middle Ages. Isidore is recognized as a Doctor of the Church and is the patron saint of the internet and computer users. His feast day is celebrated on April 4. He is often associated with the Council of Toledo, which aimed to address various issues within the church and society during his time.