Tobiah ben Eliezer was a Talmudist and poet of the 11th century, author of the Leḳaḥ Ṭob or Pesiḳta Zuṭarta, a midrashic commentary on the Pentateuch and the Five Megillot. Zunz (G. V. pp. 293 et seq. ) inferred from Tobiah's reference to his father as "the great" and from his mention of the massacre in Mainz in 1096, that he was a native of Mainz and a son of Eliezer ben Isaac ha-Gadol, who is thought by David Conforte (Ḳore ha-Dorot, p. 8b) to have been one of Rashi's teachers.
Żerków is a town in Jarocin County, Greater Poland Voivodeship, Poland, with 2,076 inhabitants (2004). Zerkow was used by the Germans during WWII as a resort spot for soldiers during the war, which is located 53 kilometers east of the Polish Industrial City of Poznan, Poland. In 1962 a telecommunication tower of reinforced concrete similar to that at Piatkowo was built.