A sommelier or wine steward is a person who is an expert in fine wine and is responsible for serving it to patrons. Sommelier is French in origin and originally a wine stewards job was to serve royalty. The modern sommeliers offer their services to fine restaurants. Although most wine stewards are men (69% of them), there are many women stewards as well. A sommelier should know detailed information about wine including such things as the types of grapes used to make a particular wine, in what region the grapes were grown, the vineyards where the grapes were grown, a wines ratings and the vintages of the various wines.