Among the sets which form this wonderful collection, distributed between the palaces of Madrid, the Prado, and the Escorial, none is of greater merit or magnificence than the series of twelve cloths depicting the _Conquest of Tunis_ (Plate xxii.), designed for Charles the Fifth by his Court painter, Jan Vermay or Vermeyen, of Beverwyck, near Haarlem, and executed by William Pannemaker, of Brussels. It was agreed by Pannemaker in 1549 that the materials employed upon this tapestry should consist of the finest wool, Granada silk, and, for the woof, the choicest Lyons _fillet_--the very best that money could procure. The Emperor himself was to provide the gold and silver thread. Accordingly, Pannemaker was supplied with five hundred and fifty-nine pounds and one ounce of silk, dyed and spun in the city of Granada, where one of Charles' agents resided for two years seven months and twenty-five days, for the purpose of superintending its preparation. The cost of this silk, exclusive of the agent's expenses, amounted to 6,637 florins. Nineteen colours were employed in the dyeing, each colour consisting of from three to seven shades, and a hundred and sixty pounds of the finest silk were consumed in trying to obtain a special shade of blue. After receiving these materials, Pannemaker kept seven workmen constantly engaged upon each _paño_ of this tapestry, or eighty-four workmen in all. As soon as any one of the pieces was concluded, he submitted it to experts who pointed out such details as they recommended for correction. The entire work required a little more than five years, and was therefore terminated in 1554. The price paid for it was twelve florins per ell, and the number of these was 1246, representing a total cost of 14,952 florins, while Pannemaker, subject to the Emperor's being satisfied with the work, was further promised a yearly pension of a hundred florins.[51] [51] Müntz, _La Tapisserie_, pp. 217, 218. Wauters, _Les Tapisseries Bruxelloises_, pp. 76, 77. Houdoy, _Tapisseries représentant la Conqueste du Royaulme de Thunes par l'empereur Charles-Quint_. Equally remarkable are the spirited design and the flawless execution of this series of elaborate cloths, recalling, in their swarms of armed figures and the lofty point of view, which reduces the sky to a mere strip, the vivacious war and camp pictures of Snyders. The titles of the subjects, forming, as it were, a pictured epitome of the expedition led by Charles in person against the Barbary pirates, are as follows: (1) A map of the Spanish coast; (2) The review of the troops at Barcelona; (3) The landing of the forces; (4) A skirmish; (5) The camp; (6) Foraging; (7) The capture of La Goleta; (8) The battle of Los Pozos, Tunis; (9) A sortie of the besieged; (10) The sack of Tunis; (11) The victors returning to the harbour; (12) The forces embarking.