Proper noun
English Wikipedia has an article on:GuiscardWikipedia
Guiscard
the sobriquet of Robert de Hauteville, a Norman adventurer remembered for the conquest of southern Italy and Sicily
Falkner: Ramillies 1706: Year of Miracles, 61 Alerted to the situation de Guiscard ordered an immediate attack with 14 squadrons of French dragoons currently stationed in the rear. Source: Internet
Falkner: The Wars of Louis XIV, 1667–1714, 50 In the open country between Taviers and Ramillies, he placed 82 squadrons under General de Guiscard supported by several interleaved brigades of French, Swiss and Bavarian infantry. Source: Internet
Henry was crowned emperor by his creature, but Robert Guiscard, with whom in the meantime Gregory had formed an alliance, was already marching on the city. Source: Internet
The Norman danger subsided with the death of Guiscard in 1085, and the Byzantines recovered most of their losses. Source: Internet
When Gregory VII was hard pressed by Henry IV, Robert Guiscard left him to his fate, and only intervened when he himself was threatened with German arms. Source: Internet