Isidore was born in Cartagena, Spain. His education included instruction in Latin, Greek, and Hebrew as well as the Quadrivium and Trivium at a new cathedral school in Seville.
Isidore wrote a 20-volume Etymologiae, also known as Origines. This work was an encyclopedic epitome (summary) of knowledge and is responsible for the preservation of much of what we know about the classical world. Isidore also wrote a Chronicon, as a universal history.
Isidore is considered the last of the Latin Church fathers. He helped to convert the Arian Visigoths to the orthodox Christianity. He was made archbishop in about 600.
Source: Catholic Encyclopedia.