u/Accomplished-Fix2006

Hello everyone, I have a question.

It is my understanding that, when William the Conqueror invaded England, he rewarded his knights by giving them lands fragmented across different counties, to avoid them building up centralized power bases and threaten his authority. Meaning that an Earl of Derby for example, could have any number of lands in Derbyshire or anywhere else, making the name of his title a bit pointless.

I wanted to know if this differed from how lands were divided across nobles in France. Did french counts had more specific and centralized power bases? Let's say, if someone was named Count of Evreux, did that imply that he had effective control over the region of Evreux and all it's land?