Jemma Madeleine Wellesley, Countess of Mornington (née Kidd; born 20 September 1974), is a British make up artist, fashion model, and aristocrat.

She currently resides on the Stratfield Saye estate, Hampshire.

Lady Mornington was a fashion model before becoming a make-up artist.^[when?] In 2002, she attended the gala opening party for Le Touessrok Hotel in Mauritius.^[1] In 2003, she opened her own "Make-up School" in London.

She was a director of the Jemma Kidd Make-up Limited, which was incorporated in 2005, Ghislaine Maxwell was also a director.^[2] The company launched a cosmetics range in 2006, which was available in the UK (in Boots), America, Australia, Hong Kong, and Canada.

Her book Jemma Kidd Make-up Masterclass was published in 2009.^{[citation needed]}

Jemma Kidd Make-up went into administration in October 2012.^[3] It was dissolved in January 2020.^[2]

The wedding of Jemma Kidd with Arthur Wellesley, Earl of Mornington, took place at St James Church in Holetown, Barbados, on 4 June 2005.

The couple has twins and a younger son:^[4]

• Lady Mae Madeleine Wellesley (born 4 January 2010 at Chelsea and Westminster Hospital in London)
• (Arthur) Darcy Wellesley, Lord Wellesley (born 4 January 2010)
• The Honourable Alfred Wellesley (born 10 December 2014)

Lady Mornington is separated from Lord Mornington, the heir apparent of the 9th Duke of Wellington. The couple announced their separation in August 2020.^{[citation needed]}

• Jemma Kidd at IMDb