<Tr> <Th> Alma mater </Th> <Td> Worcester College, Oxford (BA) </Td> </Tr> <Tr> <Th> Known for </Th> <Td> Chairman and CEO of News Corporation (1979--2013) Executive Chairman of News Corp (2013--present) Chairman and CEO of 21st Century Fox (2013--2015) Executive Co-Chairman of 21st Century Fox (2015--present) </Td> </Tr> <Tr> <Th> Net worth </Th> <Td> US $15.9 billion (June 2018) </Td> </Tr> <Tr> <Th> Political party </Th> <Td> Republican </Td> </Tr>

Where does the last name murdock come from