Isidore, often referred to as Isidore of Seville, was a prominent scholar and archbishop in the early 7th century. He is best known for his encyclopedic work, the Etymologiae, which compiled knowledge from various fields, including history, science, and theology. His efforts helped preserve classical knowledge during the Middle Ages. Isidore is recognized as a saint in both the Roman Catholic Church and the Eastern Orthodox Church. His feast day is celebrated on April 4. He is also considered the patron saint of the internet and computer users, reflecting his contributions to education and information dissemination.