1911 Encyclopædia Britannica, Volume 8… (1911)
“ The emperor made him a peer of France, and gave him command of the I. army corps, which formed part of the Army of the North. In the Waterloo campaign d’Erlon’s corps formed part of Ney’s command on the 16th of June, but, in consequence of an extraordinary series of misunderstandings, took part neither at Ligny nor at Quatre Bras (see Waterloo Campaign) . ”
