The Fourteenth Era represents a specific time frame within the Garwian Unity, a nation situated in the Unknown Regions. In the year 19 BBY, Mimott, a Garwian dame, presented a piece of clothing featuring a unique stitching technique originating from the Fourteenth Era to Ar'alani and Mitth'raw'nuruodo (whose core name was "Thrawn"), who were visiting Chiss officers.
Thrawn Ascendancy: Chaos Rising, released in 2020 and the initial book in Star Wars: The Ascendancy Trilogy by Timothy Zahn, contained a reference to the Fourteenth Era.