In medieval times, the group that suffered the most due to heavy taxation for building projects like cathedrals were the poor serfs or peasants. Here's why:
1. The lords, merchants, and bishops were generally wealthier and had more resources to bear the burden of heavy taxation. They could often pass on some of the costs to others.
2. On the other hand, the poor serfs or peasants were already living in poverty and struggled to meet their basic needs. Heavy taxation for building projects like cathedrals further strained their limited resources, making their lives even more challenging.
3. The construction of cathedrals and other grand structures was often funded through taxes imposed on the lower classes, like the serfs. This unfair taxation system disproportionately affected those who were already struggling to make ends meet.
4. The heavy taxation imposed on the poor serfs for such projects contributed to their economic hardships and perpetuated the cycle of poverty in medieval society.
Therefore, it can be concluded that the poor serfs or peasants were the group that suffered the most due to heavy taxation for building projects like cathedrals in medieval times.