For this Nils-Birger there are 2 different names on Yasni.
In the ranking of the most common first names Nils-Birger is on position 4589.
Male first name (Scandinavian): Nils; victory of the people, ancient Greek (popes); nike = victory; = laos the people, made famous by the name of St.. Nicholas, the 4th Century Bishop of Myra, previously contributed 5 popes named Nicholas
Male first name (German, Scandinavian): Birger, Old Norse (became independent short form); biaergh = mountain, well short form of names became independent with the element 'biaergh' (mountain)