Question: Where was the father of Thomson Mason (1759–1820) born?

Knowledge 1: Thomson Mason (1759–1820)
Thomson Mason (4 March 1759 – 11 March 1820) was a prominent entrepreneur, planter, civil servant, and justice.Mason was the son of George Mason, an American patriot, statesman, and delegate from Virginia to the U.S. Constitutional Convention. [SEP] Knowledge 2: George Mason
George Mason IV (October 7, 1792) was an American planter, politician and delegate to the U.S. Constitutional Convention of 1787, one of three delegates who refused to sign the Constitution.His writings, including substantial portions of the Fairfax Resolves of 1774, the Virginia Declaration of Rights of 1776, and his "Objections to this Constitution of Government" (1787)opposing ratification, have exercised a significant influence on American political thought and events.The Virginia Declaration of Rights, which Mason principally authored, served as a basis for the United States Bill of Rights, of which he has been deemed the father.Mason was born in 1725, most likely in what is now Fairfax County, Virginia.His father died when he was young and his mother managed the family estates until he came of age.He married in 1750, built Gunston Hall and lived the life of a country squire, supervising his lands, family and slaves.He briefly served in the House of Burgesses and involved himself in community affairs, sometimes serving with his neighbor George Washington.As tensions grew between Britain and the American colonies, Mason came to support the colonial side, using his knowledge and experience to help the revolutionary cause, finding ways to work around the Stamp Act of 1765 and serving in the pro-independence Fourth Virginia Convention in 1775 and the Fifth Virginia Convention in 1776.Mason prepared the first draft of the Virginia Declaration of Rights in 1776, and his words formed much of the text adopted by the final Revolutionary Virginia Convention.He also wrote a constitution for the state; Thomas Jefferson and others sought to have the convention adopt their ideas, but they found that Mason's version could not be stopped.During the American Revolutionary War, Mason was a member of the powerful House of Delegates of the Virginia General Assembly but, to the irritation of Washington and others, he refused to serve in the Continental Congress in Philadelphia, citing health and family commitments.In 1787, Mason was named one of his state's delegates to the Constitutional Convention and traveled to Philadelphia, his only lengthy trip outside Virginia.Many clauses in the Constitution bear his stamp, as he was active in the convention for months before deciding that he could not sign same.He cited the lack of a bill of rights most prominently in his "Objections," but also wanted an immediate end to the slave trade and a supermajority for navigation acts, which might force exporters of tobacco to use more expensive American ships.He failed to attain these objectives, and again at the Virginia Ratifying Convention of 1788, but his prominent fight for a bill of rights led fellow Virginian James Madison to introduce same during the First Congress in 1789; these amendments were ratified in 1791, a year before Mason died.Obscureafter his death, Mason has come to be recognized, in the 20th and 21st centuries, for his contributions to the early United States and to Virginia.
Knowledge 1: Thomson Mason (1759–1820)
Thomson Mason (4 March 1759 – 11 March 1820) was a prominent entrepreneur, planter, civil servant, and justice.Mason was the son of George Mason, an American patriot, statesman, and delegate from Virginia to the U.S. Constitutional Convention. [SEP] Knowledge 2: Thomson Mason
Thomson Mason( 14 August 173326 February 1785) was a prominent Virginia lawyer, jurist, and Chief Justice of the Supreme Court of Virginia.Mason was a younger brother of George Mason IV, United States patriot, statesman, and delegate from Virginia to the U.S. Constitutional Convention, father of Stevens Thomson Mason, a Colonel in the Continental Army during the American Revolutionary War, a member of the Virginia state legislature, and a U.S. Senator from Virginia, and great- grandfather of Stevens T. Mason, first Governor of Michigan.
Knowledge 1: George Mason
George Mason IV (October 7, 1792) was an American planter, politician and delegate to the U.S. Constitutional Convention of 1787, one of three delegates who refused to sign the Constitution.His writings, including substantial portions of the Fairfax Resolves of 1774, the Virginia Declaration of Rights of 1776, and his "Objections to this Constitution of Government" (1787)opposing ratification, have exercised a significant influence on American political thought and events.The Virginia Declaration of Rights, which Mason principally authored, served as a basis for the United States Bill of Rights, of which he has been deemed the father.Mason was born in 1725, most likely in what is now Fairfax County, Virginia.His father died when he was young and his mother managed the family estates until he came of age.He married in 1750, built Gunston Hall and lived the life of a country squire, supervising his lands, family and slaves.He briefly served in the House of Burgesses and involved himself in community affairs, sometimes serving with his neighbor George Washington.As tensions grew between Britain and the American colonies, Mason came to support the colonial side, using his knowledge and experience to help the revolutionary cause, finding ways to work around the Stamp Act of 1765 and serving in the pro-independence Fourth Virginia Convention in 1775 and the Fifth Virginia Convention in 1776.Mason prepared the first draft of the Virginia Declaration of Rights in 1776, and his words formed much of the text adopted by the final Revolutionary Virginia Convention.He also wrote a constitution for the state; Thomas Jefferson and others sought to have the convention adopt their ideas, but they found that Mason's version could not be stopped.During the American Revolutionary War, Mason was a member of the powerful House of Delegates of the Virginia General Assembly but, to the irritation of Washington and others, he refused to serve in the Continental Congress in Philadelphia, citing health and family commitments.In 1787, Mason was named one of his state's delegates to the Constitutional Convention and traveled to Philadelphia, his only lengthy trip outside Virginia.Many clauses in the Constitution bear his stamp, as he was active in the convention for months before deciding that he could not sign same.He cited the lack of a bill of rights most prominently in his "Objections," but also wanted an immediate end to the slave trade and a supermajority for navigation acts, which might force exporters of tobacco to use more expensive American ships.He failed to attain these objectives, and again at the Virginia Ratifying Convention of 1788, but his prominent fight for a bill of rights led fellow Virginian James Madison to introduce same during the First Congress in 1789; these amendments were ratified in 1791, a year before Mason died.Obscureafter his death, Mason has come to be recognized, in the 20th and 21st centuries, for his contributions to the early United States and to Virginia. [SEP] Knowledge 2: Thomson Mason
Thomson Mason( 14 August 173326 February 1785) was a prominent Virginia lawyer, jurist, and Chief Justice of the Supreme Court of Virginia.Mason was a younger brother of George Mason IV, United States patriot, statesman, and delegate from Virginia to the U.S. Constitutional Convention, father of Stevens Thomson Mason, a Colonel in the Continental Army during the American Revolutionary War, a member of the Virginia state legislature, and a U.S. Senator from Virginia, and great- grandfather of Stevens T. Mason, first Governor of Michigan.

Answer: Fairfax