King Charles is the monarch of 14 Commonwealth realms in addition to the UK. The countries include Antigua and Barbuda, Australia, Bahamas, Belize, Canada, Grenada, Jamaica, New Zealand, Papua New Guinea, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Solomon Islands and Tuvalu. King Charles' coronation will take place on May 6 at Westminster Abbey in London.