He succeeded his father in the barony in 1802, aged 19, inheriting Old Alresford House.
[1] In 1804 he was appointed Lord-Lieutenant of Radnorshire (succeeding his grandfather Thomas Harley), a post he held until his death in 1842.
[2] He was appointed Colonel of the North Hampshire Militia in 1811, and held the position until he resigned in 1841.
[3] Lord Rodney married Charlotte Georgiana Gould-Morgan, daughter of Sir Charles Morgan, 2nd Baronet, in 1819.
He died in June 1842, three days after his 60th birthday, and was buried at Old Alresford, Hampshire.