How did the Channel Islands become connected to the British crown after the Norman Conquest?

The Channel Islands became attached to the British crown as a direct result of the Norman Conquest of 1066. At that time, the islands were part of the duchy of Normandy, which was ruled by William, Duke of Normandy.12

When William successfully invaded England and became its king, the Channel Islands remained under his control as part of his ancestral lands in Normandy. Consequently, they have been associated with the British crown ever since. Even after the islands were separated from the mainland of Normandy in 1204, they retained their status as dependencies of the British crown, a position they hold to this day.1234