Callow first visited Italy in the summer of 1840, when he spent several days in Padua and was captivated by the city's picturesque streets and remarkable churches. He made several drawings of Padua including the present lot. A very similar drawing of the same subject is now in the collection of the Provost and Fellows of Eton College (illustrated in J. Reynolds, William Callow, R.W.S., London, 1980, pl. 85). Callow exhibited three watercolours of Padua, two at the Society of Painters in Watercolour, London, in 1853 and 1855, and one at the Royal Academy, London, in 1860, no. 343.