Black-Gold War (concept)
Sparked by the Chevalien Succession Crisis of 1217 IS, the Black-Gold War, or War of the Black-Gold League, was a civil war that was fought between the eponymous League and the western lords of Chevalie. The conflict began with the League making initial gains in the south, swiftly conquering Vallguedoc and Aastauxporte. However, their advance was halted in the siege of Mond Graz Castle by the famed marshal Duc Réné den va Vouirard, who held on long enough for Gardfrei to arrive with his knights.
The turning point came with the death of Duc Valomer Monteaux in 1221 IS and Gardfrei's victories in the Varusiex Campaign, which finally convinced the northern dukes and Varrdevet to recognize his claim. To make matters worse, the embattled Duc Edwin Valadec decided to shift allegiances after the loss of most of his lands. Not only did he pledge his forces to Gardfrei, he also proved instrumental in convincing the Black-Gold aligned Konijkmener to switch sides with promises of favorable trade deals.
These developments sounded the death knell for the remnants of the Black-Gold League, which fell in a final stand at the Battle of Gravgosc in 1227 IS, bringing an end to the civil war.