Multiple realities(covers information from several alternate timelines)
Alfin-Bernado was a location.
In 2367, Alfin-Bernado's position was labeled on a tactical situation monitor in Captain Benjamin Maxwell's ready room on the USS Phoenix. (TNG: "The Wounded", okudagram)
In 2366, in an alternate timeline, during the Federation-Klingon War, Alfin-Bernado's position was labeled on a tactical situation monitor in the ready room aboard the USS Enterprise-D. (TNG: "Yesterday's Enterprise", okudagram)
This location was only mentioned in writing.
"Alfin" was notable as the name of a character from Crusher Joe, an anime series in the vein of Dirty Pair.