LANDAU Descendants #rabbinic
Searching for Natan Neta LANDAU of Oswiecim: in the book LeToldot
HaKhilot BePolin page 4 there are two rabbis:
1) R. Izhak Eizig d. 2 Adar 1 5573 (=1713) son of R. Yoav ABD Piltz
and father of R. Jermiha ABD Matersdorf and Satnow d. 1705
2) R, Natan Neta Segal LANDA son on of R. Izhak Eizig ABD Dukla d.
1704 in the same book p. 17 note 14 it says that R. Natan Neta was
the father of R. Eliezer Segal LANDA of Krakaw, and that the 4 sons
of R. Izhak Eizig ABD Dukla adapted the surname LANDA name from
their mother side although it says (at the same note) that R. Izhak
Eizig's wife was the daughter of R. Binyamin Zev Wolf?
in Sefer Ushpizin (see
http://www.jewishgen.org/yizkor/oswiecim1/osw100.html, - I don't have
the Hebrew source) it says that R. Izhak Eizig surname was LANDA son
of R. Yoav and his Mazeva stats that he died on second day of Adar I
5543 Feb. 4, 1783. Which one is correct, was he a LANDAU?
Later in Sefer Ushpizin it tells that Rabbi Noson Note Halevi LANDA,
Av Besdin of Oshpitzin was born in 5601  in Brigel, Galicia.
His father, R' Moshe Dovid was a grandson and great-grandson of the
Rabbi Gaon Yitzchak Eizik of Dukla and the MaHaRa"L of Prague, He
published the following books: "Ura Shachar", "Kemo Hashachar"
(principles in Halacha and Aggada), "Kerem Nota" (on the tractate
Sotah), Responsa entitled "K'naf Renana" (Three volumes), "Chok
Olom" on aspects of the world, "Levanon Nota" (on Yoreh Deah).
Rabbi Noson Note died on Teveth 13 5667 [Dec. 30, 1906] at the age
of 66. His son, Rabbi Eliezer filled his post.
There are some discrepancies between the two sources, the father of
R. Natan Neta, the time line, the location of his son R. Eliezer
Krakaw or Oswiecim.
I'll appreciate your help in solving this issue and how is this tree
merge in the Segal LANDAU dynasty.