Who was one of the prominent Anti-Federalists and a delegate at the convention?

George Mason was indeed one of the prominent Anti-Federalists and a delegate at the Constitutional Convention of 1787. As a delegate from Virginia, he played a significant role in the debates surrounding the Constitution. Mason is most notably recognized for his advocacy of individual rights and his concerns about the potential for a strong central government to infringe on the liberties of the people. His fears about the absence of a Bill of Rights in the proposed Constitution were instrumental in the eventual adoption of the first ten amendments. While he was supportive of the need for a national government, he believed that the proposed structure did not sufficiently protect the rights of citizens or limit governmental power. Mason's influential arguments against the Constitution were crucial in the subsequent ratification debates, making him a key figure among the Anti-Federalists who sought to protect state sovereignty and personal liberties.