Aniene River at Tivoli, ca. 1786?89, Oil on paper, 12 3/4 x 11 1/2 in. (32. 4 x 29. 2 cm), Paintings, Simon Denis (Flemish, Antwerp 1755?1813 Naples), A visit to the cataracts of the Aniene River, which courses through and surrounds Tivoli, was considered to be a highlight of the Grand Tour. Denis, a fixture of the expatriate community in Rome, went there on at least three occasions