Most Commonwealth countries are already republics

It's often assumed that because the Queen is head of the commonwealth, she is also head of state to all commonwealth countries.

In fact, the London Declaration of 1949 stated that republics could be member nations, recognising the British monarch as head of the commonwealth but not as head of state.

Today, the majority of the 53 commonwealth nations are republics and many of the remainder – most notably Jamaica - are well on the way to ditching the Queen as head of state.