Mark Thatcher [SEP] sister
Mark Thatcher
Sir Mark Thatcher, 2nd Baronet (born 15 August 1953), is a British businessman. He is the son of Margaret Thatcher, former Prime Minister of the United Kingdom, and Sir Denis Thatcher, and is the twin brother of Carol Thatcher. 
His early career in business frequently led to questions being raised that he was benefiting from his mother's position, notably in relation to the Al-Yamamah arms deal. He left the UK in 1986, and has since lived in the United States,
June 2003 – present: "The Honourable Sir" Mark Thatcher, Bt
Thatcher is entitled the usage of the pre-nominal style "The Honourable" following the elevation of his mother to the peerage as a baroness in 1992; he shares this courtesy with his twin sister, Carol. After the death of his father in 2003, he inherited the Thatcher baronetcy which had been awarded in 1990, the first baronetcy created since 1964. Following his conviction in relation to the Equatorial Guinea coup d'état in 2004, it was