The Grenville Ministry was a British

Kingdom of Great Britain

The former Kingdom of Great Britain, sometimes described as the 'United Kingdom of Great Britain', That the Two Kingdoms of Scotland and England, shall upon the 1st May next ensuing the date hereof, and forever after, be United into One Kingdom by the Name of GREAT BRITAIN. was a sovereign...

 Government headed by George Grenville

George Grenville

George Grenville was a British Whig statesman who rose to the position of Prime Minister of Great Britain. Grenville was born into an influential political family and first entered Parliament in 1741 as an MP for Buckingham...

 which served between 16 April 1763 – 13 July 1765. It was formed after the previous Prime Minister, the Earl of Bute

John Stuart, 3rd Earl of Bute

John Stuart, 3rd Earl of Bute KG, PC , styled Lord Mount Stuart before 1723, was a Scottish nobleman who served as Prime Minister of Great Britain under George III, and was arguably the last important favourite in British politics...

, had resigned following fierce criticism of his signing of the Treaty of Paris

Treaty of Paris (1763)

The Treaty of Paris, often called the Peace of Paris, or the Treaty of 1763, was signed on 10 February 1763, by the kingdoms of Great Britain, France and Spain, with Portugal in agreement. It ended the French and Indian War/Seven Years' War...

 with its perceived lenient terms for France and Spain despite Britain's successes in the Seven Years War

Great Britain in the Seven Years War

The Kingdom of Great Britain was one of the major participants in the Seven Years' War which lasted between 1756 and 1763. Britain emerged from the war as the world's leading colonial power having gained a number of new territories at the Treaty of Paris in 1763 and established itself as the...

. Grenville's government was made made up largely of the same members as Bute's had. George III had a violent dislike of the new government because of his resentment of the way they had replaced his favourite Bute.

During its two years, the Ministry confronted growing discontent in Britain's American colonies

Thirteen Colonies

The Thirteen Colonies were English and later British colonies established on the Atlantic coast of North America between 1607 and 1733. They declared their independence in the American Revolution and formed the United States of America...

 which were to lead to the American War of Independence breaking out in 1775. The Ministry also had to deal with the antics of John Wilkes

John Wilkes

John Wilkes was an English radical, journalist and politician.He was first elected Member of Parliament in 1757. In the Middlesex election dispute, he fought for the right of voters—rather than the House of Commons—to determine their representatives...

.

The King's violent dislike of Grenville eventually forced him to dismiss him as First Minister and replaced him with the Marquess of Rockingham

Charles Watson-Wentworth, 2nd Marquess of Rockingham

Charles Watson-Wentworth, 2nd Marquess of Rockingham, KG, PC , styled The Hon. Charles Watson-Wentworth before 1733, Viscount Higham between 1733 and 1746, Earl of Malton between 1746 and 1750 and The Earl Malton in 1750, was a British Whig statesman, most notable for his two terms as Prime...

, whom he hated almost equally.