Many rich mediaeval textiles were ornamented by designs, which usually show interlaces and animal forms, and sometimes conventional floral ornament. Patterns originated in the East, and, through Byzantine influence, in Italy, and Saracenic in Spain, they were adopted and modified by Europeans. In 1295 St. Paul's in London owned a hanging "patterned with wheels and two-headed birds." Sicilian silks, and many others of the contemporary textiles, display variations of the "tree of life" pattern. This consists of a little conventional shrub, sometimes hardly more than a "budding rod," with two birds or animals advancing vis-a-vis on either side. Sometimes these are two peacocks; often lions or leopards and frequently griffins and various smaller animals. Whenever one sees a little tree or a single stalk, no matter how conventionally treated, with a couple of matched animals strutting up to each other on either side, this pattern owes its origin to the old tradition of the decorative motive usual in Persia and in Byzantium, the Tree of Life, or Horn. The origin of patterns does not come within our scope, and has been excellently treated in the various books of Lewis Day, and other writers on this subject. Textiles of Italian manufacture may be seen represented in the paintings of the old masters: Orcagna, Francia, Crivelli, and others, who delighted in the rendering of rich stuffs; later, they abound in the creations of Veronese and Titian. A "favourite Italian vegetable," as Dr. Rock quaintly expresses it, is the artichoke, which, often, set in oval forms, is either outlined or worked solidly in the fabric. Almeria was a rich city in the thirteenth century, noted for its textiles. A historian of that period writes: "Christians of all nations came to its port to buy and to sell. From thence... they travelled to other parts of the interior of the country, where they loaded their vessels with such goods as they wanted. Costly silken robes of the brightest colours are manufactured in Almeria." Granada was famous too, a little later, for its silks and woven goods. About 1562 Navagiero wrote: "All sorts of cloth and silks are made there: the silks made at Granada are much esteemed all over Spain; they are not so good as those that come from Italy. There are several looms, but they do not yet know how to work them well. They make good taffetas, sarcenet, and silk serges. The velvets are not bad, but those that are made at Valencia are better in quality."