Damascene processes generally form and fill a single feature with copper per Damascene stage. "Copper" has the disadvantage that the damascene process is very extensive. The Spanish damascene metalwork collection is one of the largest collections of its kind. Baldwin made an incursion against Damascene territory in 1113. Restoration work notably concerned the renovation of part of the decorative panels by Damascene craftsmen. The mosaics of the Umayyad Mosque gave inspiration to later Damascene mosaic works. This led to the establishment of Spain's damascene industry. The building has two stories, with the lower church dedicated to Saint John Damascene. After the canon, the choir chants stichera that were composed by St. John Damascene. They are also briefly mentioned by St. Augustine and by St. John Damascene. Many Christians (e.g. St. John Damascene) held important offices at their court. The centralization efforts, backed by the Damascene "aghawat", faced stiff resistance. Al-Azma hailed from a wealthy Damascene landowning family. In August or September 1127, Baldwin launched a new military campaign against Damascene territory. One of the most important Damascene creators was Fujii Yoshitoyo from Kyoto, Japan.