1066 And All That
Every British school child knows the significance of 1066. That was the year Norman duke William “the Conqueror” invaded England and killed King Harold with an arrow.
Although the most obvious implication is clear - that William became king of England - the secondary outcome is less obvious. As the Norman duke, William was already ruler of Guernsey and the rest of the Channel Islands. Thus, it could be said, Guernsey’s side won and England lost. In the process, England was joined to the Channel Islands, rather than the other way around. That technically made the Channel Islands the senior partner in the union.
In Guernsey, the British monarch is known as the "Duke of Normandy", notwithstanding the fact that the current monarch, Queen Elizabeth II, is a woman. The Islands owe allegiance to her in her role as their duke.
It is not unusual at formal occasions when the loyal toast is given to hear "The Queen" followed by "Our Duke".