User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-30314236-20170525200823/@comment-4802891-20170527174210

I think this Servant is the personification of a star. From Asian legends, I can see 2 or 3 people : Orihime/Vega, Kenyuu/Altair and the magpie/Deneb. "Bridge of ???" (Magpies? Stars? Heaven?) implies Deneb, but how do you go from a bunch of birds to the owner of a Death-Star-tier weapon, it's quite peculiar lol

So, is it your very personal interpretation of Deneb?