In 1691, after leaving the post of viceroy of Peru and during his return to Spain, Melchor de Navarra y Rocafull, Duke of La Palata, died in Portobelo. The news of his death was received in Lima with some poems against him written by the poet Juan del Valle y Caviedes. In these verses, using mainly the model of funeral poetry, a series of accusations are made against the duke in which his avarice and pride are criticized. In this paper I will comment a poetic epitaph, in the form of a sonnet, in which, in addition to moral accusations, echoes of political attacks against the ex-viceroy are also manifest. [ABSTRACT FROM AUTHOR]