- a wife or widow of a viscount
- a noblewoman holding the rank of viscount in her own right
- A viscount (-count) is a member of the European nobility whose comital title ranks usually, as in the British peerage, above a baron, below an earl (in Britain) or a count (the earl's continental equivalent).
- The wife of a viscount; A female member of the peerage who bears the title in her own right
- A lady who has been Princess of a Principality once.