Menno Coehoorn served in the Nilfgaardian Imperial Army as Field Marshal. He was in a position of confidence with the Emperor Emhyr var Emreis, and so was granted governorship over Cintra during his reign. He commanded the Center Army Group during the 2nd Northern War - his record included the several battles in Dol Angra, Aldersberg and the Battle of Brenna.
Coehoorn met his defeat at the Battle of Brenna. The reconnaissance units he sent out before the battle failed to notice the Nordling reserves under voivodes Bronibor and Blenckert. These units tipped the scales in favor of the Nordlings and Coehoorn was forced to flee. During his retreat, he was shot to death by the remnants of Zoltan Chivay's company, his body left in the swamp.
The character was named after Menno, baron van Coehoorn, a 17th century Dutch soldier and military engineer, of Swedish extraction.
Coehorn refused to escape with the same words as Polish Crown Grand Hetman (general) Stanisław Żółkiewski, conqueror of Moscow and one of the greatest Polish commanders, who died in Battle of Cecora against Tartars.