Piero della Francesca's celebrated Montefeltro Altarpiece (1474) is his last work.
Montefeltro Altarpiece was Piero della Francesca's first piece of work.
mnli hypothesis: Montefeltro Altarpiece was Piero della Francesca's first piece of work. premise: Piero della Francesca's celebrated Montefeltro Altarpiece (1474) is his last work.