<Tr> <Th> Inaugural holder </Th> <Td> Sir Robert Walpole as First Lord of the Treasury and de facto first Prime Minister . </Td> </Tr> <Tr> <Th> Formation </Th> <Td> 4 April 1721 </Td> </Tr> <Tr> <Th> Salary </Th> <Td> £ 143,462 annual, including £ 74,962 MP's salary </Td> </Tr> <Tr> <Th> Website </Th> <Td> Official website </Td> </Tr>

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