Final answer:
The Roman Catholic Church dominated the economic systems of Medieval Europe through its control over finances and the imposition of taxes on the faithful.
Step-by-step explanation:
The Roman Catholic Church dominated the economic systems of Medieval Europe through its control over finances and the imposition of taxes on the faithful. The Vatican in Rome, as the seat of the Catholic Church, exercised significant power over the lives of Europeans. It utilized this power to not only control religious matters but also to influence economic policies and accumulate wealth. With its wealth and authority, the Church played a vital role in shaping the economic landscape of Medieval Europe.