Final answer:
French isolation was reduced through the emergence of a stronger central government, growth in royal control, and the embrace of mercantilism. Reforms brought by French domination also contributed to a reduction in isolation, such as the establishment of single customs areas, unified systems of weights and measures, and religious toleration.
Step-by-step explanation:
Lombard-Verbot did not directly reduce French isolation. From the provided information, it seems that French isolation was reduced through the emergence of a stronger central government, growth in royal control, and the embrace of mercantilism. These factors allowed for greater regulation of economic life and the promotion of French manufacturing and foreign trade. The reforms brought by French domination also contributed to a reduction in isolation, such as the establishment of single customs areas, unified systems of weights and measures, and religious toleration.