feminine viscountess a European title of nobility, ranking immediately below a count, or earl. In the Carolingian period of European history, the vicecomites, or missi comitis, were deputies, vicars, or lieutenants of the counts, whose official powers they exercised by delegation. As the countships eventually became hereditary, the lieutenancies did so too: for instance, the viscounts in Narbonne, in Nmes, and in Albi appear to have made their office hereditary by the beginning of the 10th century. Even so, viscounts remained for some time with no other status than that of the count's officers, either styling themselves simply vicecomites or qualifying their title with the name of the countship whence they derived their powers.
VISCOUNT
Meaning of VISCOUNT in English
Britannica English vocabulary. Английский словарь Британика. 2012