Caroline Louise Beavan Johnson (née Symonds; born 17 March 1988) is an English media consultant and is married to Boris Johnson. She is the daughter of Matthew Symonds, co-founder of The Independent. Symonds worked as a Conservative Party media official and an environmental activist, and remains a senior advisor to the ocean conservation charity Oceana, and is a patron of the Conservative Animal Welfare Foundation. She began an affair with Johnson, then Foreign Secretary, in 2018 while he was still married to his second wife, Marina Wheeler.
https://en.wikipedia.org/wiki/Carrie_Johnson