The Marquess of Westminster is a title in the British peerage, created in 1874. The title is associated with the Grosvenor family, one of the wealthiest and most prominent families in the United Kingdom. The current Marquess, as of 2023, is Hugh Grosvenor, who inherited the title in 2016. The family has significant land holdings, particularly in London and Wales. The Marquess of Westminster is a member of the House of Lords, the upper house of the UK Parliament, although hereditary peers have limited seats following the House of Lords Act 1999. The title is often linked to the Grosvenor Estate, which includes various properties and developments in central London.