He became Governor of Malta with the local rank of general on 1 January 1899 and was created Baron Grenfell, of Kilvey in the County of Glamorgan on 15 July 1902.
18 июля 1902 году получил титул барона Гренфелла Килвийского в графстве Гламорган ("Baron Grenfell, of Kilvey in the County of Glamorgan)".