Disambiguation evidence for Johann Wilhelm, Duke of Saxe-Gotha-Altenburg via surface form

"Johann Wilhelm, Duke of Saxe-Gotha-Altenburg"

Triples (1)

Triples where some other subject referred to this entity as "Johann Wilhelm, Duke of Saxe-Gotha-Altenburg".

Magdalene Sibylle of Saxe-Weissenfels → child →
"Johann Wilhelm, Duke of Saxe-Gotha-Altenburg"
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