About this time Rubens died in Flanders, leaving behind him an unfinished series of pictures which had been commissioned by the king of Spain. Van Dyck was asked to finish these, but declined until he was asked to make an independent picture, to complete the series, and this he was delighted to do. Ferdinand of Austria wrote to the king of Spain that Van Dyck had returned in great haste to London to arrange for his change of home, in order to do the work. "Possibly he may still change his mind," he added, "for he is stark mad." This shows how Van Dyck's erratic ways appeared to some people. He had a sister, Justiniana, who was also something of an artist and she married a nobleman when she was about twelve years old. When Van Dyck died he was buried in St. Paul's, London, and Charles I. placed an inscription on his tomb. In the "Young People's Story of Art," is the following anecdote: "A visit was once paid by a courtly looking stranger passing through Haarlem, to Franz Hals, the distinguished Dutch painter. "Hals was not at home but he was sent for to the tavern and hastily returned. The stranger told him that he had heard of his reputation--had just two hours to spare--and wished to have his portrait painted. Hals, seizing canvas and brushes fell vigorously to work; and before the given time had elapsed, he said, 'Have the goodness to rise, sir, and examine your portrait!' The stranger looked at it, expressed his satisfaction, and then said, 'Painting seems such a very easy thing, suppose we change places and see what I can do!' "Hals assented, and took his position as the sitter. The unknown began, and as Hals watched him, he saw that he wielded the brush so quickly, he must be a painter. His work, too, was rapidly finished, and as Hals looked at it he exclaimed, 'You must be Van Dyck! No one else could paint such a portrait!' "No two portraits could have been more unlike. The story adds that the famous Dutch and Flemish masters heartily embraced each other." The stories of Van Dyck's youth are interesting, and probably true. It is said that he drew so well when he was a pupil of Rubens that the great master often allowed him to retouch his own works. Once in Rubens's studio, some of the students got the key and went in to see what the master was doing, when he was absent. Rubens had left a painting fresh upon the easel, and in looking about them one of the boys rubbed against it. This frightened them all. What should they do? Rubens would find his picture ruined and know that they had broken in.