Crossword Genius

The Channel Islands were once part of the Duchy of ____ (8)

Ross

I believe the answer is:

normandy

(Other definitions for normandy that I've seen before include "Region of northern France" , "place of William" , "conqueror's home region" , "French region" , "Area of Northern France" .)

I've seen this clue in The Times and The Sunday Times.
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