Translation of "Galilei" in Japanese

Is Galileo Galilei a real name?

ガリレオ・ガリレイって本名ですか？

"Do you know anything about Galileo Galilei?" "I've heard the name before, but what was it that he did?"

「ガリレオ・ガリレイって知ってる？」「名前は聞いたことあるんだけど、何した人？」