Coinciding with the Salon du Dessin, the sale on 25 March features Part III of the largest and most important private collection of old master drawings to be seen at auction in the last 15 years. Professor I.Q. van Regteren Altena was the former director of the Drawings and Prints departments at the Rijksmuseum in Amsterdam; the third part of his collection comprises 80 lots of exceptional French and Italian drawings dating from the 16th to the 19th century, with estimates ranging from €800 to €100,000. Highlights include a beautiful work in red chalk by Piranesi, a Madonna and Child by Fra Bartolommeo and Barocci’s Study of a Child’s Head. Eight lots from the former collection of the Murat Princes are also offered, including Ingres’ Portrait de Caroline Bonaparte – she was the wife of Joachim Murat and the younger sister of Napoleon I – and a Romantic watercolour by Victor Hugo.