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Lady Moyra Blanche Madeleine Browne, DBE, GCStJ (née Ponsonby; born 2 March 1918), is a former nurse and the only daughter of The 9th Earl of Bessborough, an Anglo-Irish peer, and his wife, Roberte.
On 10 December 1945, she became the second wife of Sir Denis Browne (1892–1967), a distinguished paediatric surgeon based at Great Ormond Street Hospital (GOSH) from 1922 to 1967. The Sir Denis Browne Gold Medal from the British Association of Paediatric Surgeons was named in his honour. After her husband's death in 1967, Lady Moyra was vice-president of the Royal College of Nursing from 1970-85, Superintendent-in-Chief of St. John Ambulance from 1970-83 and Governor of Research into Ageing from 1987–89.