Is Aharon Dov Beer really son of Naftali Beer? Is there any source or evidence? I haven't found anything...
According to someone, he was born in Třebíč in 1815 but he isn't listed in any records in Třebíč.
Also, his Hebrew name here is Aharon Dov Ber Lederer. I've found a birth record of Aharon Ber Lederer in Třebíč records (born in 1818). I think it might be him.
Best regard,
Radim Čada