King George III was born on 4th June in 1738. He was the son of Frederick, Prince of Wales and his wife Augusta of Saxe-Gotha. He ascended the throne after the death of his grandfather George II in 1760, as his father had died earlier in 1751. Under the ruling of King George III, in 1800 the British and Irish Parliaments passed an Act of Union that took effect on 1st January 1801, and united Great Britain and Ireland into a single state known as the United Kingdom of Great Britain and Ireland. This was the most significant event during his reign. Also, under the terms of the Treaty of Amiens, George III dropped the title of King of France, which was used for every English monarch since Edward III's claim to the French throne in the medieval period. In the person of Charlotte of Mecklenburg-Strelitz, the king found a loving and caring spouse, but his sons gave him a lot of anxiety because of their lack of motivation and wastefulness. George III and Charlotte of Mecklenburg-Strelitz