Filippo Buondelmonti degli Scolari (1369 – December 1426), known as Pippo Spano,[a] was an Italian magnate, general, strategist and confidant of King Sigismund of Hungary, born in the Republic of Florence.
During the new period of trouble with the claim to the throne of Charles II's son Ladislaus of Naples, Lo Scolari exposed acts of treason on the part of some noblemen.
In this capacity, he initiated the building of the Hungarian border castle system to contain the Ottoman aggression; immediately, Pippo started confronting the Turks, but also moving against the Bosnian armies of Hrvoje Vukčić Hrvatinić that had been besieging the town of Šibenik in Dalmatia, regaining parts of today's Croatia.
In 1410, Sigismund sent him to persuade Italian city-states to cut off their links with Naples: he traveled in great pomp to his native Florence, then to Ferrara (meeting Niccolò III d'Este).
As part of the anti-Venetian campaign of 1411, Lo Scolari entered Friuli at the head of an army, conquered Aquileia and, in December, he took Udine and several fortresses in Romagna, then Vittorio Veneto - capturing a high official from the Barbarigo family.
This outcome made Venetian accounts imply a settlement with the Most Serene Republic, and even the mythical execution of Pippo as revenge by the Emperor King (he supposedly had molten gold poured down his throat).
Pippo took part in the March 1414 initial proceedings of the Council of Constance, where the Emperor King charged him with guarding John XXIII - an assignment he did not fully accomplish, as the Antipope soon managed to flee.