A lady's companion was a woman of genteel birth who lived with a woman of rank or wealth as retainer. The term was in use in the United Kingdom from at least the 18th century to the mid-20th century but it is now archaic. The profession is known in most of the Western world. The role was related to the position of lady-in-waiting, which by the 19th century was applied only to the female retainers of female members of the royal family. Ladies-in-waiting were usually women from the most privileged backgrounds who took the position for the prestige of associating with royalty, or for the enhanced marriage prospects available to those who spent time at court, but lady's companions usually took up their occupation because they needed to earn a living[1] and have somewhere to live. A companion is not to be confused with lady's maid, a female personal attendant roughly equivalent to a "gentleman's gentleman" or valet, who would often be from a more working class background.