Jemma Madeleine Wellesley, Countess of Mornington, born Kidd (born 1974) is an English countess (a courtesy title, derived from her father-in-law's courtesy title), a make up artist, and a fashion model.
Lady Mornington is the second daughter of Johnny and Wendy Madeline Hodge Kidd. She is also a paternal great-granddaughter of the newspaper baron 1st Baron Beaverbrook who founded "The Daily Express".
She has led a successful career as a fashion model and make-up artist. Her sister Jodie also models. In 2003, Jemma opened her "Make-up School" in London. A cosmetics line of the same name was launched in 2006 and is available in the UK (Boots and Selfridges), America, Australia, Hong Kong and Canada.
She was married to Arthur Wellesley, Earl of Mornington, elder son and heir of the Marquess of Douro (himself eldest son and heir apparent of the Duke of Wellington at St James' Church in Barbados on 4 June 2005.