David Lloyd, c.1656–1731, political leader in colonial Pennsylvania, b. Wales. Having been commissioned attorney general of Pennsylvania by William Penn, Lloyd arrived in Philadelphia in 1686. He later became a member of the provincial assembly, acting as its speaker and serving in the provincial council on several occasions. After 1703, Lloyd assumed the leadership of the antiproprietary party and was in constant sharp conflict with James Logan. He served as chief justice of Pennsylvania from 1717 until his death.