Aragonese Crusade Angevin invasion of Sicily The naval Battle of Ponza took place on 14 June 1300 near the islands of Ponza and Zannone, in the Gulf of Gaeta (north-west of Naples), when a galley fleet commanded by Roger of Lauria defeated an Aragonese-Sicilian galley fleet commanded by Conrad d'Oria.

For the first time he refused, probably because of a lack of confidence in his Angevin crews, and d'Oria ravaged some offshore islands.

Now Lauria emerged and found the Sicilians near Zannone Island to the west.

After d'Oria dismissed a suggestion to retreat, he tried a quick attack on Lauria's flag-galley and the banner-carrying galleys, his own galley running alongside Lauria's, "head to toe", and Lauria's crew suffered even though his galley couldn't be boarded.

Five Genoese Ghibelline galleys held back, awaiting fortune, and 18-29 (two sources give 28, but this adds up to too many) Sicilian galleys were captured, d'Oria's being the last to surrender (when Lauria threatened to burn it).