Oomis,
For my part, I was kidding, and I think that was quite clear. Leib is Yiddish for lion. Hirsh is Yiddish for deer. Lev is Hebrew for heart, but just because Richard was dubbed, The Lion Hearted, I don’t think that is a good enough reason to call a lion, a heart. The Maharal’s name was Yehuda and was commonly called, Reb Leib, in his day.
There are people who have the Hebrew version and are nicknamed the Yiddish, and there are those who are named only the Yiddish name. You can have a brother named Arye while you are named Leibel. So, always, I don’t know why you don’t just take the word of the Matzeva and give the name Hirsh.
Once we’re on the topic, where does the name Faivel come from?