did he participate in battles?
Yes. He was a member of the French contingent which marched into Spain in 1087
William the Carpenter
William was a member of the French contingent which marched into Spain in 1087 
who is 'william the carpenter'? A French nobleman which place in france did he belong to? Melun, a town about 50 kilometres outside Paris in the Brie region of the French Vexin, which was later known as the Île-de-France what is his year of birth? UNANSWERABLE approximately in which century was his existence? Eleventh and twelfth century
wiki:6283001
William the Carpenter [SEP] Military exploits
According to twelfth-century monk Guibert of Nogent, William was "powerful in words, but less so in action...a man who set out to do things too great for him." William was a member of the French contingent which marched into Spain in 1087 to assist Alfonso VI of Castile with the siege of Tudela against the Almoravids. He may have been one of the leaders, along with Eudes I, Duke of Burgundy, who was the nephew of Alfonso's wife Constance. The French army never made it to Tudela and withdrew with little success. Guibert says that William "retreated like a wretch, leaving countless men stranded by his flight." William's actions in Spain may have been the inspiration for the character of Ganelon in the "Chanson de Roland", which was possibly written in the early twelfth-century, based on similar events that had occurred during the reign of Charlemagne centuries earlier.