From BiblePortal Wikipedia

Hastings' Dictionary of the Bible [1]

Patroclus The father of Nicanor ( 2Ma 8:9 ).

International Standard Bible Encyclopedia [2]

pa - trō´klus ( Πάτροκλος , Pátroklos ): The father of the Syrian general Nicanor (  2 Maccabees 8:9 ).

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [3]

( Πάτροκλος , a frequent Greek name since the time of Homer), the father of Nicanor, the famous adversary of Judas Maccabaeus ( 2 Maccabees 8:9).

The Nuttall Encyclopedia [4]

A friend of Achilles, who accompanied him to the Trojan War, and whose death by the hand of Hector roused Achilles out of his sullenness, and provoked him to avenge the deed in the death of Hector.