Disambiguation evidence for Franz Frederick Anton, Duke of Saxe-Coburg-Saalfeld via surface form

"Ludwig Karl Frederick of Saxe-Coburg-Saalfeld"

Triples (1)

Triples where some other subject referred to this entity as "Ludwig Karl Frederick of Saxe-Coburg-Saalfeld".

Duchess Sophie Antoinette of Brunswick-Wolfenbüttel → child →
"Ludwig Karl Frederick of Saxe-Coburg-Saalfeld"
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