records as Rubens's assistants. Anthony van Dyck worked in Rubens's workshop after training with Hendrick van Balen in Antwerp. Other artists linked to the Rubens's workshop as pupils, assistants or collaborators are Abraham van Diepenbeeck, Lucas Faydherbe, Lucas Franchoys the Younger, Nicolaas van der Horst, Frans Luycx, Peter van Mol, Deodat del Monte, Cornelis Schut, Erasmus Quellinus the Younger, Pieter Soutman, David Teniers the Elder, Frans Wouters, Jan Thomas van Ieperen, Theodoor van Thulden and Victor Wolfvoet (II). He also often sub-contracted elements such as animals, landscapes or still-lifes in large compositions to specialists such as animal painters Frans Snyders and Paul de Vos, or other artists such as Jacob Jordaens. One of his most frequent collaborators was Jan Brueghel the Younger. Art market At a Sotheby's auction on 10 July 2002, Rubens's painting Massacre of the Innocents, rediscovered not long before, sold for £49.5 million (US$76.2 million) to Lord Thomson. At the end of 2013 this remained the record auction price for an Old Master painting. At a Christie's auction in 2012, Portrait of a Commander sold for £9.1 million (US$13.5 million) despite a dispute over the authenticity so that Sotheby's refused to auction it as a Rubens. Selected exhibitions 1936 Rubens and His Times, Paris. 1997 The Century of Rubens in French Collections, Paris. 2004 Rubens, Palais de Beaux-Arts, Lille. 2005 Peter Paul Rubens: The Drawings, Metropolitan Museum of Art, New York. 2015 Rubens and His Legacy, The Royal Academy, London. 2017 Rubens: The Power of Transformation, Kunsthistorisches Museum, Vienna. 2019 Early Rubens, Art Gallery of Ontario Toronto, Fine Arts Museums of San Francisco. Lost works Lost works by Rubens include: The Crucifixion, painted for the Church of Santa Croce in Gerusalemme, Rome, was imported to England in 1811. It was auctioned in 1812 and again in 1820 and 1821 but was lost at sea sometime after 1821. Equestrian Portrait of the Archduke Albert Susannah and the Elders is now known only from engraving from 1620 by Lucas Vosterman. Satyr, Nymph, Putti and Leopards is now known only from engraving. Judith Beheading Holofernes c. 1609 known only through the 1610 engraving by Cornelis Galle the Elder. Works destroyed in the bombardment of Brussels included: Madonna of the Rosary painted for the Royal Chapel of the Dominican Church Virgin Adorned with Flowers by Saint Anne, 1610 painted for the Church of the Carmelite Friars Saint Job Triptych, 1613, painted