Portrait of Maria Louisa de Tassis (1611-1638), standing three quarter length, wearing a gold embroidered white satin dress with slashed sleeves, decorated with pearls, lace collar and cuffs and a dark green coat, a pink ribbon around her waist and a pearl necklace, holding a fan in her right hand

The prototype of circa 1629, on canvas, 128.2 x 99.5 cm, is in the Sammlungen des Regierenden Frsten von Liechtenstein, Castle Vaduz, inv. no.58 (E. Larssen, The Paintings of Anthony van Dyck, 1988, I, pp.281 ff, fig.273 and II, p.209, no.521).
The sitter was the only daughter of Antonio de Tassis, who became a canon at Antwerp Cathedral in 1629. As pointed out by Hans Vlieghe in Van Dyck - 1599-1641, exhibition catalogue, Antwerp and London 15 May-10 December 1999, p.216, no.55, ill., it is likely that the prototype was commissioned by Antonio de Tassis at the time of his ordination, together with his own portrait, also now in the Sammlungen des Regierenden Frsten von Liechtenstein, Castle Vaduz (H. Vlieghe, op. cit., p.216, fig.1).
The satin dress, elegantly decorated with ribbons and gold embroidery, the sophisticated jewellery and the ostrich feather follow the latest French fashion of the time.