For this Declan Brian there are 4 different names on Yasni.
In the ranking of the most common first names Declan Brian is on position 4587.
hl known by, Declan; Old Irish (Word format); unknown origin and meaning: Male first name (English, Irish). Declan, a missionary in Ireland (5th century); anglizierte form of 'Deaglan'
Male first name (English, Irish): Brian, Celtic (Word format); bryn = the hill, taken from English, Irish or Breton origin, spread as the name of the Irish hero Brian Boroimhe