text: A likely-fictional account and defense of this man's life was written hundreds of years later by Lucas Tudensis.
full_question: A likely-fictional account and defense of this man's life was written hundreds of years later by Lucas Tudensis. He composed many letters to his younger associate Braulio, who compiled a posthumous list of his works called the Renotatio. This man who is not Lucretius dedicated his text On the Nature of Things to the ruler Sisebut, a friend of his whom he praised as an enlightened king. This man's younger sister Florentina allegedly held claim over forty convents, and at her request he wrote his two books Against the Jews, while his younger brother Fulgentius served as bishop of Astigi. He gained his highest office by replacing his older brother Leander, who had been a favorite of Pope Gregory I. This man is remembered for composing a twenty-book encyclopedia, which offers to explain the origin of several words, entitled the Etymologies. For 10 points, name this Doctor of the Church, a saint who served under the Visigoths in Spain as archbishop in Seville.
first_sentence: A likely-fictional account and defense of this man's life was written hundreds of years later by Lucas Tudensis.
raw_answer: Saint Isidore of Seville [or Isidorus Hispalensis]