John William Cousin, A Short Biographical Dictionary of English Literature… (1910)
“ Other poems of D. are The Wars of the Barons (1603) , England's Heroical Epistles (1598) (being imaginary letters between Royal lovers such as Henry II. and Rosamund) , Poems, Lyric and Heroic (1606) (including the fine ballad of "Agincourt") , Nymphidia, his most graceful work, Muses Elizium, and Idea's Mirrour, a collection of sonnets, Idea being the name of the lady to whom they were addressed. Though often heavy, D. had the true poetic gift, had passages of grandeur, and sang the praises of England with the heart of a patriot. ”
