Complex sentence: It was to Dorat that Scaliger owed his home for the next thirty years of his life, for in 1563 the professor recommended him to Louis de Chastaigner, the young lord of La Roche Pozay, as a companion in his travels.
Split into simpler sentences: It was to Dorat that Scaliger owed his home for the next thirty years of his life. In 1563 the professor recommended him to Louis de Chastaigner, the young lord of La Roche Pozay, as a companion in his travels.