William de Grey, 4th Baron Walsingham, was a British nobleman born on December 12, 1797. He succeeded his father, the 3rd Baron Walsingham, in 1831. As a member of the House of Lords, he played a role in the legislative process during his lifetime. Baron Walsingham was also known for his contributions to the British Army and his involvement in local governance. He served as a Deputy Lieutenant of Norfolk and was active in various charitable organizations. He passed away on March 24, 1868, leaving behind a legacy tied to his family's long-standing aristocratic heritage.