For this Alan Bertrand there are 2 different names on Yasni.
In the ranking of the most common first names Alan Bertrand is on position 4589.
Male first name (German, English, Scottish): Alan, Celtic (Word format); al = the rock, came in the Middle Ages with the Normans to England significance not sure clarified, perhaps of Celtic and Breton 'al' (rock)
Male first name (German, English, French): Bertrand, Old High (two-part name); beraht = bright, shiny; rant = the plate; old German two-part name, is also interpreted alternatively as the Middle Ages, resulting variant of 'Bert'
