Henry, Prince of Capua

Henry (Arricus or Arrico) (1160–1172) was the youngest and second surviving son of William I of Sicily by Margaret of Navarre. By his father's will he succeeded to the title Prince of Capua, an appanage to the throne, while his brother William succeeded to the throne. Henry's coronation as prince was postponed from the death of his father (1166).

In 1168 it was rumored that William II had been murdered and Chancellor Stephen du Perche was planning to have his brother marry Princess Constance aunt of William and Henry, to claim the throne. However, in fact even if William II had died, his successor would be Henry rather than Constance, who had been confined to Santissimo Salvatore, Palermo as a nun from childhood. Eventually, Stephen was forced to flee.

Henry was present with William at Taranto, where the young king awaited his Greek bride. They planned to return via Capua and there invest Henry with his principality, but not far off from the town, Henry came down with a high fever. He was hurried to Salerno and thence to Palermo, but died within the month. According to legend, he was betrothed to a daughter of Malcolm IV of Scotland on his deathbed, but this is false. Malcolm had no issue. He was originally buried in the chapel of Saint Mary Magdalene, but was moved by his brother to Monreale, the final resting place of most of his family.

The death of Henry made Constance the only legitimate heir to the throne; despite this, she remained confined until 1184.