The city of Liège, noted for its independence and wealth, found itself under the attack of forces loyal to Charles I of Burgundy during a pivotal moment of the Burgundian Wars. Frustrated by the city's persistent defiance and insurrection against his rule, Charles I decided to take decisive military action. The siege commenced with his troops encircling the city, cutting off supplies and communication to weaken the resolve of the inhabitants. The citizens of Liège, though fierce in their resistance, were eventually overwhelmed by the more organized and better-equipped Burgundian forces.

Following a period of intense fighting, the city fell into the hands of Charles I. The troops looted and destroyed parts of the city, leading to significant loss of life and property among the civilians who had raised arms against the Burgundian crown. This brutal intervention was not merely an act of punishment but a calculated effort to discourage other cities in the region from rebelling against Burgundian authority. The siege reflected the unfolding conflict between local governance and the overarching power of the Burgundian Duke, who sought to consolidate his territories.

The consequences of the sack were profound. It led to a deep-seated resentment among the populace and an emboldened loyalty to Charles I among his supporters. It also emphasized the importance of military strength in negotiations and power dynamics during the era. This event would resonate throughout the region, influencing alliances and conflicts in subsequent years, and exemplifying the lengths to which rulers would go to maintain control over their domains.