This article deals with the consumption and marketing of textiles in some Castilian areas during the first decades of the 17th century. The study uses a new documentary source: the 1618 inquiry. Part one describes the main characteristics of this documentary source. The second part analyzes textiles sales according to the fibre the different fabrics were made of. The third part presents some notes on the typology of the textiles sold in the country. This allows us to describe the marketing areas of two highly representative products of the Castilian woollen industry: the Segovian and Andalusian cloth. Finally, in the fourth and last part we have estimated the consumption of textile fabrics by household. This analysis has also been completed with a study of the terms of trade between grain and some textile fabrics between 1614 and 1616. The results support the hypothesis of a higher consumption of textile products in Andalusia than in Old Castile at the beginning of the 17th century.
