Complex sentence: When Philip IV of France confiscated the duchy of Gascony in 1294, more money was needed to wage war in France and Edward summoned a precedent setting assembly known as the Model Parliament, which included barons, clergy, knights and townspeople.
Split into simpler sentences: When Philip IV of France confiscated the duchy of Gascony in 1294, more money was needed to wage war in France. To gain financial support for the war effort, Edward summoned a precedent setting assembly known as the Model Parliament, which included barons, clergy, knights and townspeople.