Original: This was a Pyrrhic victory, however; the city had shown itself strong enough to defy the powerful Archbishop of Cologne, but lost much of its trade: the "liberated" town was two-thirds surrounded by territories with other allegiances.
Simplified: This was a Pyrrhic victory, however; the city had shown itself strong enough to defy the powerful Archbishop of Cologne, but lost much of its trade: the "freed" town was two-thirds surrounded by territories with other rulers.