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Franco-Scottish Alliance: An Enduring Diplomatic Feat The Franco-Scottish Alliance, solidified through the efforts of Mary of Guise, stands as a notable achievement in maintaining diplomatic ties between France and Scotland during the 16th century. This enduring alliance served as a strategic bulwark against England's persistent attempts to exert dominance over the region. It involved mutual support, military partnerships, and dynastic marriages, effectively cementing Franco-Scottish relations for generations.