Complex sentence: Girolamo Rossi sketched a family tree of the house in the book "Historiarum ravennatum books" (Venice, Aldus Manutius editions, 1572) He found that the first to assume the designation of "Traversaria" was Duke Paul, who died in 947.
Split into simpler sentences: Girolamo Rossi sketched a family tree of the house in the book "Historiarum ravennatum books" (1572). He wrote that the first to use the designation of "Traversaria" was one Duke Paul, who died in 947.