TOKYO — Ordinarily, Fordham University Law School in New York does not publicize an incoming student who is about to matriculate.

But Kei Komuro is no ordinary student. He is the fiancé of Princess Mako, the eldest grandchild of Japan’s Emperor Akihito, head of the world’s oldest monarchy.

Or is he?

On Thursday, in response to a request by Japan’s Imperial Household Agency, which oversees the ceremonial functions and protocols of the royal family, Fordham removed a phrase from a news release that had trumpeted Mr. Komuro, a paralegal in Tokyo, as the “fiancé of Princess Mako of Japan.”

As demonstrated by the recent wedding of Prince Harry of Britain and Meghan Markle, a biracial, divorced American, any commoner who marries into a royal family is subjected to intense scrutiny.