Complex sentence: Sir John became quite prominent at the court of King Henry VIII and even accompanied the king on an expedition to France, following such campaigns and his competence in battle he was appointed Vice-Chamberlain to the King.
Split into simpler sentences: Sir John became quite prominent at the court of King Henry VIII and even accompanied the king on an expedition to France. Following such campaigns and his competence in battle he was appointed Vice-Chamberlain to the King.