Mary Louisa Boyle, Biographical catalogue of the portraits at Longleat in the county of Wilts…
“ Lettice, Lady Leicester, survived her husband nearly half a century. Elizabeth always hated her, and would never be reconciled to her, although she was the mother of Robert Devereux, Earl of Essex, who succeeded his stepfather in the royal favour. The Queen stormed and raved on first hearing of the marriage, wept profusely, and behaved as was her wont. In 1584 she sent Leicester to the Low Countries in command 195of the auxiliary forces, and he joined his gallant nephew, Sir Philip Sidney, at Flushing. ”
