Who is 3th king of England?

The third king of England was King Henry I, who reigned from 1100 to 1135. He was the fourth son of William the Conqueror and came to the throne after the death of his brother, William II. Henry I is known for his administrative reforms and efforts to strengthen royal authority, as well as for issuing the Charter of Liberties, which laid the groundwork for future legal developments. His reign also saw the establishment of the Exchequer and the expansion of the royal court system.