Humphrey Sibthorp was a British Tory politician.

He was elected as a Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 (MP) for Boston

Boston (UK Parliament constituency)

Boston was a parliamentary borough in Lincolnshire, which elected two Members of Parliament to the House of Commons from 1547 until 1885, and then one member from 1885 until 1918, when the constituency was abolished.-History:...

 at a by-election in April 1777, after the death of Charles Amcotts MP. He was re-elected in 1780

British general election, 1780

The British general election, 1780 returned members to serve in the House of Commons of the 15th Parliament of Great Britain to be held after the merger of the Parliament of England and the Parliament of Scotland in 1707...

, and held the sat until his defeat at the 1784 general election

British general election, 1784

The British general election of 1784 resulted in William Pitt the Younger securing an overall majority of about 120 in the House of Commons of Great Britain, having previously had to survive in a House which was dominated by his opponents.-Background:...

.

He was elected as a Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 (MP) for Lincoln

Lincoln (UK Parliament constituency)

Lincoln is a borough constituency represented in the House of Commons of the Parliament of the United Kingdom. It elects one Member of Parliament by the first past the post system of election....

 at a by-election in April 1800, after the death of George Rawdon MP. He was re-elected in 1802

United Kingdom general election, 1802

The United Kingdom general election, 1802 was the election to the 2nd Parliament of the United Kingdom. It was the first to be held after the formation of the United Kingdom of Great Britain and Ireland...

, and held the seat until the 1806 general election

United Kingdom general election, 1806

The United Kingdom general election, 1806 was the election of members to the 3rd Parliament of the United Kingdom. This was the second general election to be held after the Union of Great Britain and Ireland....

, when he did not stand again in Lincoln.

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