Mark Thatcher

Sir Mark Thatcher, 2nd Baronet is a British businessman and the son of Margaret, Lady Thatcher, former Conservative British Prime Minister, and Sir Denis Thatcher, 1st Baronet, and is the twin brother of Carol Thatcher. He has two children by his first wife, Diane Burgdorf Michael Thatcher , and Amanda Margaret Thatcher. He married his second wife, Sarah Jane Russell, daughter of Terry Clemence, a wealthy property developer, and sister of Viscountess Rothermere, in 2008.

Thatcher and his twin sister, Carol Thatcher, were born six weeks prematurely by caesarean section in 1953, the same year that their mother qualified as a barrister. Their early years were spent in Chelsea, London. Their mother was narrowly defeated in her bid to become the Conservative candidate in the Orpington byelection, 1955. She was elected to Parliament in the 1959 general election. The children, aged six at the time, featured in her first television interview. His sister observed All my childhood memories of my mother were just someone who was superwoman before the phrase had been invented. She was always flat out, she never relaxed, household chores were done at breakneck speed in order to get back to the parliamentary correspondence or get on with making up a speech.

Source: Wikipedia