<Tr> <Th> Era </Th> <Td> 20th century </Td> </Tr> <Tr> <Th> Notable work </Th> <Td> "Forged from the Love of Liberty" (1962) </Td> </Tr> <P> Patrick Stanislaus "Pat" Castagne (3 October 1916--5 May 2000) was a Guyanese - born Trinidadian composer, best known for composing "Forged from the Love of Liberty", the national anthem of Trinidad and Tobago . </P> <P> Born to Trinidadian parents in British Guiana, Castagne moved to Trinidad when he was young and grew up there, attending St Mary's College . </P>

Who wrote the national anthem of trinidad and tobago