For this Duncan Roger there are 8 different names on Yasni.
In the ranking of the most common first names Duncan Roger is on position 4583.
Male first name (English): Duncan, brown (haired) warrior; Old Irish (Word format); donn = brown; chadh = the warriors
Male first name (German, English, French): Roger, Old High (two-part name); hruod = fame; ger = the spear old German two-part name, the form 'Rüdiger' is known as the name of Margrave Rüdiger von Echelaren from the Nibelungenlied