Philip de Lannoy, 2nd Prince of Sulmona (1514âÂÂ1553) 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 (d. ). Among his siblings were Ferdinand de Lannoy, Count de La Roche (who married Marguerite Perrenot de Granvelle, a daughter of Nicolas Perrenot de Granvelle), Georges de Lannoy, 2nd Duke of Boiano (who married Julia Diaz Carlon, a daughter of Antonio Diaz Carlon, 3rd Count of Alife), and Clemente de Lannoy, Baron of Prata (who married Ippolita Branai Castriota Scanderbegh, a daughter of Ferrante Castriota, Marquess of CittàSant'Angelo).
His father was the younger son of Jean IV de Lannoy, Lord of Mingoval (himself nephew of Jean III de Lannoy) and Philipotte de Lalaing. His maternal grandparents were Jacques de Montbel, Count d'Entrémont, and Jeanne de Saint-Maur.
The title, Prince of Sulmona, had been granted to his father in 1526, together with Grandeeship of Spain, during the reign of Charles V, Holy Roman Emperor as King of Naples, in recognition of the work done by Charles as Viceroy of Naples.
At the Battle of Ceresole in 1544, he commanded the Neapolitan light cavalry.
In 1534, he married Isabella Colonna of the prominent Colonna family. The widow of Louis "Rodomonte" Gonzaga, Isabella was the only daughter of Vespasiano Colonna, Duke of Traetto, Count of Fondi, and, his first wife, Beatrice Appiani. She was raised, however, by her father's second wife, Giulia Gonzaga. From her first marriage, she was the mother of Vespasiano I Gonzaga, who became the Duke of Sabbioneta. Together, they were the parents of five children:
The Prince died in 1553 and was succeeded as Prince of Sulmona by his eldest son, Charles. The title, however, became extinct upon the death of Philip II de Lannoy, 6th Prince of Sulmona in 1604. Upon his widow's death at Naples in 1570, her son Vespasiano from her first marriage inherited all her possessions.