Alleyne FitzHerbert, 1st Baron St Helens PC (Derby 1 March 1753 – London 19 February 1839) was a British diplomat and a friend of explorer George Vancouver, who named Mount St. Helens in what is now Washington after him.
He was Minister Plenipotentiary to Russia from 1783 to 1788, appointed Chief Secretary for Ireland and a member of the Privy Council (Great Britain &...