Frank Miller Lupton, or Lupton Bey, (1854 – 8 May 1888) was a British sailor who served as an administrator in the Egyptian Sudan.He was governor of Bahr el Ghazal province in 1881 at the start of the Mahdist War.Cut off from supplies and reinforcements, he had to surrender the province in 1884.After an initial period of freedom has was enchained for ten months.He was freed but struggled to make a living, his health deteriorated and he died in poverty.He had married a local woman who survived him, as did their two daughters.