Why was the First Crusade more successful than the following seven Crusades?
Because the First Crusade was largely concerned with Jerusalem, a city which had not been under Christian dominion for 461 years, and the crusader army refused to return the land to the control of the Byzantine Empire, [ the status of the First Crusade as defensive or as aggressive in nature remains controversial.
The First Crusade was part of the Christian response to the Muslim conquests, and
was followed by the Second Crusade to the Ninth Crusade, but the gains made lasted for less than 200 years. It was also the first major step towards reopening international trade in the West since the fall of the Western Roman Empire.
There are no new answers.