Howard Staunton (1810-74), an illegitimate son of Frederick Howard, the Earl of Carlisle, was one the most acknowledged world chess players during the 1840s/ early 1850s. Staunton-style is a generic term for tournament chess sets, more or less closely modelled on the pattern pioneered by John Jacques and Nathaniel Cooke from the mid-19th century onwards. 1849 is the year when the standardised Staunton chess design was patented. It was on March 1, 1849, when Nathaniel Cook registered his drawings under the Ornamental Designs Act. Until that date, and due to the difficulty of distinguishing the pieces with resulting complaints from chess players, many different shapes of chess pieces existed. It was in 1835 that a standardised set was designed by Nathaniel Cooke, and H. Staunton agreed to lend his name to the new design in order to promote its commercial success. The Staunton pattern has been interpreted in different ways by chess piece manufacturers all over the world. Genuine Staunton sets were made from ebony and boxwood and the pieces weighted with lead in order to give them stability.