original passage: With Adelin dead, the inheritance to the English throne was thrown into doubt. Rules of succession in western Europe at the time were uncertain; in some parts of France, male primogeniture, in which the eldest son would inherit a title, was becoming more popular. It was also traditional for the King of France to crown his successor whilst he himself was still alive, making the intended line of succession relatively clear, but this was not the case in England. In other parts of Europe, including Normandy and England, the tradition was for lands to be divided up, with the eldest son taking patrimonial lands—usually considered to be the most valuable—and younger sons being given smaller, or more recently acquired, partitions or estates. The problem was further complicated by the sequence of unstable Anglo-Norman successions over the previous sixty years—William the Conqueror had gained England by force, William Rufus and Robert Curthose had fought a war between them to establish their inheritance, and Henry had only acquired control of Normandy by force. There had been no peaceful, uncontested successions.
original sentence: There had been no peaceful, uncontested successions.
sentence2: From this passage, would the reader consider the violent nature of the war between William Rufus and Robert Curthose to be an exception rather than the rule, when it came to successions?
sentence1: With Adelin dead, the inheritance to the English throne was thrown into doubt. Rules of succession in western Europe at the time were uncertain; in some parts of France, male primogeniture, in which the eldest son would inherit a title, was becoming more popular. It was also traditional for the King of France to crown his successor whilst he himself was still alive, making the intended line of succession relatively clear, but this was not the case in England. In other parts of Europe, including Normandy and England, the tradition was for lands to be divided up, with the eldest son taking patrimonial lands—usually considered to be the most valuable—and younger sons being given smaller, or more recently acquired, partitions or estates. The problem was further complicated by the sequence of unstable Anglo-Norman successions over the previous sixty years—William the Conqueror had gained England by force, William Rufus and Robert Curthose had fought a war between them to establish their inheritance, and Henry had only acquired control of Normandy by force. There had been no peaceful, uncontested successions.