Philip de Lannoy, 2nd Prince of Sulmona

Philip de Lannoy, 2nd Prince of Sulmona  (1514–1553) was an Italian military leader in Spanish service.

He was the son of Charles de Lannoy, 1st Prince of Sulmona and Françoise de Montbel, Duchess of Boiano. At the Battle of Ceresole in 1544, he commanded the Neapolitan light cavalry.

He married in 1534 Isabella Colonna, widow of Louis Gonzaga (Rodomonte). They had 5 children :
 * Maria, nun in the monastery of Santa Maria Donna Regina in Naples;
 * Carlo (1538–1566), 3rd prince of Sulmona and 2nd count of Venafro, married Costanza Doria del Carretto;
 * Beatrice, married first Alfonso de Guevara 5th Count of Potenza, then Alberto Acquaviva d'Aragona, 12th Duke of Atri;
 * Orazio (? – 1597), 4th prince of Sulmona and 3rd count of Venafro, married Antonia d'Avalos;
 * Vittoria (? – 1594), married Giulio Antonio Acquaviva d'Aragona 1st prince of Caserta and 2nd marquess of Bellante.