At in this place is not needed, and it sounds uneducated to my ear.
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AnonymousUniversity A is the place where I went to schoolUse this one. You can even omit "the place": University A is where I went to school.
AnonymousShould I rephrase my question as "Can I end this sentence with an at?No. You certainly don't have to rephrase your question. However, you can use that question