Gary Christie Lewis

Until 26 March 2015, Tāne was ahead of Senna in the line of succession to the British throne, as common law sons had priority over daughters. When the Succession to the Crown Act 2013 took effect in all Commonwealth realms in 2015, Senna became the nearest relative of the reigning monarch, Queen Elizabeth II, to be affected by the change in law, which advanced her proximity to the Crown by reversing her place in the order of succession with that of her younger brother. Senna and Tāne became 28th and 29th in line (now 32nd and 33rd), respectively. Her children were the first members of the family to be affected by this change.

Lady Davina and her former husband have a daughter, Senna Kowhai, who was born on 22 June 2010 and a son, Tāne Mahuta, who was born 25 May 2012. Her son was named after the Tāne Mahuta, a giant kauri tree in the Waipoua Forest of Northland Region, New Zealand.

Lady Davina does not carry out official functions but does attend family events including royal weddings. Lady Davina and Gary Lewis were invited to attend the Queen's reception for members of the New Zealand All Blacks at Buckingham Palace in 2005. She and her former husband also attended Prince William's wedding in 2011.

On 31 July 2004, she married Gary Christie Lewis (born in 1970), a New Zealander. Lewis is a carpenter who runs a property renovation business and is a surfing enthusiast. He has a son, Ari (born 1992), from a previous relationship. The couple had known each other for four years, having met on holiday in Bali, but they kept their relationship secret for several years. Lewis is the son of Larry Lewis, a Māori builder who was runner-up in the Golden Shears sheep-shearing competition in 1982. His uncle is the prominent Maori author Witi Ihimaera who wrote The Whale Rider which became a film of the same name.

Gary Lewis is also the first person of known Māori descent to marry a relative of the royal family, or to marry the daughter of a British prince. As she is a legitimate descendant in the male line of King George V and in line to the British throne, the Royal Marriages Act 1772 required that Royal Assent to the wedding be obtained in advance for the marriage to be legal and the descendants thereof to inherit rights of succession to the thrones of the Commonwealth realms, including that of New Zealand. On 20 July 2004, the Queen-in-Council formally declared her consent to the marriage. The wedding took place at the private chapel of Kensington Palace, Lady Davina's childhood home. Apart from the Duke and Duchess of Gloucester and the bride's siblings, no other members of the royal family were present at the wedding; only close friends and family were involved. The couple divorced in 2018.

Lady Davina was born at St Mary's Hospital, London. She was baptized on 19 February 1978 at Barnwell Parish Church. She grew up in Kensington Palace. Lady Davina was educated at Kensington Preparatory School in Notting Hill, followed by St George's School, Ascot. She is a graduate of the University of the West of England, with a degree in media studies.

Lady Davina Elizabeth Alice Benedikte Windsor (born 19 November 1977), known as Lady Davina Lewis between 2004 and 2018, is the elder daughter of Prince Richard, Duke of Gloucester, and his wife Birgitte, Duchess of Gloucester. She is 31st in the line of succession to the British throne as of May 2019.