Final answer:
Cardinal Richelieu and the French's consistent efforts to form partnerships and relationships with Native Americans were crucial in establishing a solid relationship with the French.
Step-by-step explanation:
The most influential person in establishing a solid relationship with the French was Cardinal Richelieu. In 1627, he provided a spiritual justification for Franco-Indian partnerships in the Ordonnance of 1627, which stated that the descendants of the French and the Indians who adopted the faith would be considered natural Frenchmen. This gesture helped build strong relationships with Native Americans in New France.
Additionally, the French sought to ally themselves with Native Americans and successfully formed friendly relationships with them. Unlike other European colonizers, the French relied on Native Americans to assist in exploiting the valuable fur trade and even married Native American women. This led to the creation of a multicultural and multiracial society in New France.
Overall, Cardinal Richelieu and the French's consistent efforts to form partnerships and relationships with Native Americans were crucial in establishing a solid relationship with the French.