The reason why the Carlos Faction refused to cooperate with Queen Isabel is simple: there is a fundamental conflict between the two sides regarding the choice of the throne.
Queen Isabel supports her son Alfonso, while the Carlos Faction supports "Carlos VII."
After the complete failure of the Carlos Faction, they were also expelled from Spain and fled to France.
However, due to various reasons, the cooperation between Queen Isabel and the Carlos Faction was only established in 1875, several years later.
Another major factor that led Queen Isabel and the Carlos Faction to cooperate was the impact of Spain's land rent reduction policy on the Spanish nobility.
The early reforms of Spain did not have much to do with the nobility, but since the start of agricultural reform, the income of the nobility has been greatly affected.
