A. Pallucchini, L'opera completa di Giambattista Tiepolo, L'opera completa di Giambattista Tiepolo, Milan 1968, Milan 1968, p. 99, p. 99, No. 90; A. Morassi, No. 90; A. Morassi, A complete catalogue of the paintings of Giovann Battista Tiepolo, A complete catalogue of the paintings of Giovann Battista Tiepolo, London 1962, London 1962, Nr. 370; G. Knox, Nr. 370; G. Knox, Catalogue of the Tiepolo Drawings in the Victoria and Albert Museum, Catalogue of the Tiepolo Drawings in the Victoria and Albert Museum, London 1960, London 1960, No. 14., No. 14., The attribution of the present drawing to Giovanni Battista Tiepolo was confirmed by Prof. Giorgio Marini, The attribution of the present drawing to Giovanni Battista Tiepolo was confirmed by Prof. Giorgio Marini, Uffizi (Email 30th June 2015) and by Prof. Adelheid Gealt (Email 28th Aug. 2015)., Uffizi (Email 30th June 2015) and by Prof. Adelheid Gealt (Email 28th Aug. 2015)., ,The present drawing is connected with a fresco cycle in the Villa Loschi al Biron in Vicenza whose frescoes in grisaille technique were assigned to Tiepolo by Duke Nicolo Loschi in 1734 (Palluchini 1968, ,The present drawing is connected with a fresco cycle in the Villa Loschi al Biron in Vicenza whose frescoes in grisaille technique were assigned to Tiepolo by Duke Nicolo Loschi in 1734 (Palluchini 1968, No. 90). Five further preliminary drawings for the cycle are known and preserved in the Civico Museum in Triest, No. 90). Five further preliminary drawings for the cycle are known and preserved in the Civico Museum in Triest, including studies for the allegories of justice, including studies for the allegories of justice, ,temperance and truth which were formerly kept in the Rasini collection (Morassi 1962, ,temperance and truth which were formerly kept in the Rasini collection (Morassi 1962, ,London (Knox 1960, ,London (Knox 1960