<Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="4"> 7 . Blanche of Lancaster </Td> <Td_colspan="6"> </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="4"> 30 . Henry de Beaumont, 4th Earl of Buchan </Td> </Tr>

Who established a navigation school and financed expeditions to the west coast of africa