Friends have the chance to visit privately two of the exhibitions the Museo Nacional del Prado is showing this summer, for which four works have been loaned temporarily from the permanent collection: Fra Angelico’s The Virgin of Humility and Lorenzo Monaco’s Virgin and Child on the Throne with Six Angels, usually on view at the MNAC, can be seen in the exhibition Fra Angelico and the Rise of the Florentine Renaissance from May onwards. And from 25 June Balthasar van der Ast’s Chinese Vase with Flowers, Shells and Insect and Adriaen Thomasz Key’s William I, Prince of Orange, known as William the Silent will be part of the show Velázquez, Rembrandt and Vermeer. Parallel Visions.