Andrea Leadsom is the new Economic Secretary to the Treasury, David Cameron has announced.
The South Northamptonshire MP came into parliament in May 2010 after a 25-year career in banking and finance. She takes the role of Nicky Morgan, who has been promoted to Financial Secretary to the Treasury.
Ms Leadsom is said to have once sworn at new boss Mr Osborne when he tried to persuade her not to vote against the Government over Europe in the early days of the Coalition - a claim that she denied at the time.
Maria Miller handed in her resignation today, saying the row over her expenses had become 'an enormous distraction'.
It is possible that the Chancellor had come to a different conclusion from the PM as to which way the Maria Miller crisis was going.
The son of a Pakistani immigrant, the newly-appointed Culture Secretary has been tipped by some as a future Conservative leader.