Aryeh Leib (Lejba) Lieb Bachrach

The Greyeve (Grajewo) Rabbi according to Portraits of Scholars, Communal Workers & Philanthropists (in Suwalki) by Rabbi Yehoash Zavoznitski. Translated by Dr. Ida Selavan Schwarcz

About his yihus: "...a member of the famous Bakhrakh family mentioned in the genealogy book “Da'at Kedoshim”, a descendant of the famous author of “Havat Yair”."

His famous ancestor was Yair Bachrach:

"Yair Chayim Bacharach (1639, Lipník nad Bečvou, Moravia — 1702) was a German rabbi and major 17th century posek, who lived first in Koblenz and then remainder of his life in Worms and Metz. His grandmother Eva Bacharach was a granddaughter of the Maharal of Prague, and his father Moses Samson Bacharach, and grandfather had served as rabbis of Metz."<br/>

"He was the author of Havvot Yair ("Villages of Yair") a collection of responsa by the title of which is he commonly referred; its title is a reference to his grandmother Chava as well as to a place mentioned in Numbers 32:41 and elsewhere in the Jewish Bible. Other work includes his Mekor Chayim, which was intended as a principal commentary to Shulkhan Arukh but was withdrawn by Bacharach when he discovered that other commentaries, notably the Taz and the Magen Avraham, had appeared. It is still regarded a prime source of material concerning minhagim (customs) of the area and epoch.
Besides his Halakhic expertise he had complete mastery of all the sciences, music, history and wrote poetry. He compiled a 46 volume encyclopedia on many topics."

"In 1689 the Worms community was decimated by the French during the Nine Years' War. Gradually, it was rebuilt. In 1699 he was appointed rabbi of Worms where his father and grandfather had served before him. He served for only three years until his death in 1702. The inscription on his tombstone begins with the words, “A great and dark horror befalls us from the hiding of the light of Rabbeinu...”"

See also: Descendants of Rabbi Tuvia Bachrach of Ruzhany

Parents:
Szlomo Z Jankiel Bachrach
1770 - ?
Chajka Chonelowicz Bachrach
1770 - ?
Wife:
Chai Liba Kalmanowna Bachrach
1800 - ?
Sister:
Rochla Szlomowna Grodner (born Bachrach)
1816 - ?
Children:
Chaim Bachrach
1817 - ?
Szoel Chona Bachrach
1822 - ?
Dawid Bachrach
1832 - ?
Pesza Syma Lew Lew (born Bachrach)
1820 - ?
Maryem Neche Myszkowski (born Bachrach)
1827 - ?
Sweyra Birgier (born Bachrach)
1837 - ?
Source

Another view in MyHeritage which shows a different parentage.
Leib (Lejba) Bachrach
1795 - 1864
Birth:
1795
Death:
1864
Family members

Parents:
Joshua Heschel Bacharach
1750 - ?
Mrs. Joshua Heschel Bacharach (born Prozner)
Wife:
Chaja Liba Bachrach
1795 - 1843
Siblings:
Rabbi Yehuda Ben Yoshua Heskiel Bacharach
1775 - 1846
Hanoch Heinich Bachrach (Born Bacharach)
Esther Shapiro (born Bachrach)
Children:
Pesza Syma Lew
1810 - 1838
Dwejra (Deborah) Berger
1825 - ?
Dawid Bachrach
1832 - 1891
Cypora Bachrach
1840 - ?
<Private> Bachrach
Chaim Katz Bachrach
1824 - 1896
Miriam Neiche Myszkowski (born Bachrach)
1826 - 1893
Myndla Bachrach
1837 - 1840
Yehuda Bachrach

Joshua Heschel Bachrach family

Parents:
Isaac Bachrach (Born Bacharach)
1725 - ?
Unknown Bachrach
Wife:
Mrs. Joshua Heschel Bacharach (born Prozner)
Children:
Rabbi Yehuda Ben Yoshua Heskiel Bacharach
1775 - 1846
Esther Shapiro (born Bachrach)
Leib (Lejba) Bachrach
1795 - 1864
Hanoch Heinich Bachrach (Born Bacharach)

Unifying or splitting these Bachrach's needs more research.