How should I use a possessive apostrophe when a name is between commas? [duplicate]

possessives apostrophe punctuation commas appositives

I'm not sure there is a way to correctly render it using an appositive and an apostrophe. Instead, if you want to keep representing the possessive with an apostrophe, I'd make "Robert" an essential clause and remove the comma altogether:

When was your father Robert's wedding?

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