Complex sentence: Johann Rudolf Pfyffer von Altishofen, born in 1615? and died the 17th of May 1657 was the Commander of the Swiss Guard from 1652-1657 protecting the Popes Innocent X and Alexander VII at the Vatican.
Split into simpler sentences: Johann Rudolf Pfyffer von Altishofen, born in 1615? and died the 17th of May 1657. He was the Commander for the Swiss Guard from 1652-1657 protecting the Popes Innocent X and Alexander VII at the Vatican.