For this Duncan Carl there are 2 different names on Yasni.
In the ranking of the most common first names Duncan Carl is on position 4589.
Male first name (English): Duncan, brown (haired) warrior; Old Irish (Word format); donn = brown; chadh = the warriors
known early in Germany, for example, by Charlemagne (8th-9th century.), Carl, Old High (Word format); Karal = the man, husband, old German name was but: Male first name (German, English) until the 19th Century in Germany popular