John Joseph Knight, Dictionary of National Biography… (1892)
“ Kean now transferred his services to Covent Garden, where, as Shylock, he made his first appearance on 15 Oct. 1827. Here he remained for the season, playing no new part. In May 1828 he played Richard III at the Théâtre Français, Paris, under the patronage of the Duc d'Orléans. Some curiosity was excited, but no appreciation. His visit was, however, commemorated in ‘Kean, ou Désordre et Génie’ by Alexandre Dumas, produced in 1836 at the Porte Saint-Martin. Forgiving his son Charles, Kean appeared with him on 1 Oct. ”
