Guaimar IV of Salerno

Guaimar IV (c. 1013 – ass. 2/3/4 June 1052) was Prince of Salerno (1027–1052),Duke of Amalfi (1039–1052), Duke of Gaeta (1040–1041), and Prince of Capua (1038–1047) in Southern Italy over the period from 1027 to 1052. He was an important figure in the final phase of Byzantine authority in the Mezzogiorno and the commencement of Norman power. He was, according to Amatus of Montecassino, "more courageous than his father, more generous and more courteous; indeed he possessed all the qualities a layman should have—except that he took an excessive delight in women."

He was born around the year 1013, the eldest son of Guaimar III of Salerno by Gaitelgrima, daughter of Duke Pandulf II of Benevento. His elder half-brother, the son of Porpora of Tabellaria, John (III) reigned as co-prince from 1015. When he died in 1018, Guaimar was made co-prince. In 1022, the Emperor Henry II campaigned in southern Italy against the Greeks and sent Pilgrim, Archbishop of Cologne, to attack Pandulf IV of Capua, nicknamed the "Wolf of the Abruzzi", and Guaimar of Salerno. Pandulf was captured and Guaimar submitted, sending the younger Guaimar as a hostage. The emperor remanded him to Pope Benedict VIII and he was released. The younger Guaimar succeeded his father in Salerno in 1027 (at the age of fourteen or sixteen, possibly under the regency of his mother during his brief minority). He embarked then on a lifelong quest to control the whole of the southern third of the Italian Peninsula.

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