Romance Aristocrats remain a rich class in society. But their role changes. Increasingly they are a class within a country, rather than small scale rulers of counties, duchies etc. I the Exchequer - An efficient way of looking after money. But are fair Kings control over vacant fiefs.
Courts are a source of power.
Use of Writs Beginnings of Common Law. Anglicization of Aristocracy. The 'Men of the Realm' G. 1265 Simon de Montfort vs. Henry III - Parliament.