Mark Nelson

(male) From the Latin name Marcus, borne by the Evangelist, author of the second gospel in the New Testament, and by several other early and medieval saints. In Arthurian legend, King Mark is the aged ruler of Cornwall to whom Isolde is brought as a bride by Tristan; his name was presumably of Celtic origin, perhaps derived from the element march ‘horse’. This was not a particularly common name in the Middle Ages but was in more frequent use by the end of the 16th century.

1. English and Scottish: patronymic from the medieval personal name Nel or Neal, Anglo-Scandinavian forms of the Gaelic name Niall (see Neill). This was adopted by the Scandinavians in the form Njal and was introduced into northern England and East Anglia by them, rather than being taken directly from Gaelic.