PERSON@1 was the inspiration for the poem , The Acts and Deeds of Sir PERSON@2 , Knight of LOCATION@1 , by the 15th-century minstrel , PERSON@3 and this poem was to some extent the basis of PERSON@4 's screenplay for the NUMBER@1 film Braveheart .

A book called The Acts and Deeds of Sir PERSON@2 , Knight of LOCATION@1 was written by a minstrel named PERSON@3 in the 15th century .
