If you’ve been following this series, you’ll have realised that land is the fundamental building block of European nobility: particularly the province or county. The pivot point for understanding titles is what England calls an earl, whether they’re called some variation of ‘count’ or ‘jarl’ or ‘graf’ or some other term. Counts (or earls) ruled counties on behalf of the monarch. Marcher lords or marquises or margrafs ruled counties on the kingdom’s borders. Dukes ruled several counties.
When we get to viscount, we’re going the other way. The key part of the word is ‘vis’, from late Latin ‘vice’ meaning a deputy or substitute. Vicar comes from the same root word. In Carolingian times (in the empire of Charlemagne and his descendants), the vicecomites were officials appointed to exercise the powers of the comites (counts) who had delegated them to act. The man was a official who worked for the count (or higher official), just as the count was an official who worked for the king.
Vicecomes wasn’t, initially, a hereditary title, just a job title, as — for that matter — were the higher titles. Just as count became a hereditary title, in time, so did viscount.
France had hereditary viscounts when it first began to differentiate itself from the Holy Roman Empire. The duchy of Normandy was divided into vicecomtes, ruled by vicecomes as deputies to the duke.
In England, the term vicecomes was applied to those who held the role of sherif, but the first hereditary title wasn’t applied until 1440, when John Lord Beaumont was created the first English viscount.
Other European countries retain equivalent titles. In Portugal and Spain, the rank is visconde, in France, vicomte, in Germany, the rank is burggraf.