Chess-Wilson

Multiple realities
(covers information from several alternate timelines)

Chess-Wilson was a binary star system in the Alpha or Beta Quadrant.

In 2367, Chess-Wilson'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, Chess-Wilson's position was labeled on a tactical situation monitor on the bridge and in the ready room of the USS Enterprise-D. (TNG: "Yesterday's Enterprise", okudagram)

This star system was only mentioned in writing.
It can't be deduced from the star chart in which quadrant Chess-Wilson was located as there were planets and star systems from both quadrants spread throughout the chart.
Chess-Wilson was named in part for camera operator Joe Chess. (citation needededit)