The Fall of Princes is a long poem by English poet John Lydgate. It is based on Giovanni Boccaccio's work De Casibus Virorum Illustrium, which Lydgate knew in a French translation by Laurent de Premierfait, entitled Des Cas des nobles hommes et femmes. Lydgate's poem was written in the years 1431-38. It is composed of nine books and some 36 thousand lines. It is made up of rhyme royal stanzas:
The poem tells about lives and tragic deaths of many historical and legendary persons. A sixteenth-century poem The Mirror for Magistrates by various authors is a sequel to The Fall of Princes.