Landulf of Conza (died after 979), a Lombard nobleman, was briefly Prince of Benevento in 940 and then briefly Prince of Salerno in 973. The son of Atenulf II of Benevento, Landulf ruled on his father's death (940) as co-prince with his uncle, Landulf I, who soon sent him into exile. He initially took refuge at the court of Marinus II of Naples, from where he sought shelter in Salerno through his sister, Gaitelgrima, the second wife of Prince Guaimar II of Salerno. This he received and he was soon appointed gastald of Conza, while his sons—Landenulf, Landulf, Indulf, and Guaimar—were invested with land in Salerno. The Chronicon Salernitanum, which is the most important source for Landulf's life, names the counties of Marsi, Sarno, and Lauro as those of Guaimar, Indulf, and Landenulf, respe