Complex sentence: He learned to fence from René Peroy, Harvard fencing coach, sabre champion in Europe and member of the 1924 US Olympic fencing team, and from Joseph Levis, number two in the world in foil and silver medalist at the 1932 Olympics.
Split into simpler sentences: He learned to fence from René Peroy, Harvard fencing coach, European sabre champion, and member of the 1924 US Olympic fencing team. His other coach, Joseph Levis, was the second ranked in the world in foil and silver medalist at the 1932 Olympics.