The d'Estes' Palazzo dei Diamanti (9,000 pointed pieces of diamond-shaped marble on its walls) houses the Pinacoteca Nazionale, with notable works of the Ferrara masters Cosmy Tura, Ercole de' Roberti, Garofalo, and Dosso Dossi.
Pinacoteca Nazionale has been empty for the last 20 years.
mnli hypothesis: Pinacoteca Nazionale has been empty for the last 20 years. premise: The d'Estes' Palazzo dei Diamanti (9,000 pointed pieces of diamond-shaped marble on its walls) houses the Pinacoteca Nazionale, with notable works of the Ferrara masters Cosmy Tura, Ercole de' Roberti, Garofalo, and Dosso Dossi.