Original: Iceland Personal union with Denmark from 1918 to 1944 when the country became a republic Ireland Personal union with England from 1541 (when the Irish Parliament proclaimed King Henry VIII of England, King of Ireland) to 1707 (upon the formation of Great Britain).
Simplified: Iceland Personal union with Denmark from 1918 to 1944 when the country became republic. Personal union with England from 1541 (when the Irish Parliament proclaimed King Henry VIII of England, King of Ireland) to 1707 (upon the formation of Great Britain).