The Strashelye branch was formed as the result of a dispute of Rabbi Shneur Zalman's succession.
Though the group was founded by a former student of Chabad, it is commonly referred to as "Strashelye" after the town in the Mohilev Province of present-day Belarus where its leaders lived.
At the time of Rabbi Menachem Mendel's death, several of his sons assumed the title of rebbe, splitting the movement into several groups.
Avrutch was founded after the death of the third Chabad rebbe, Rabbi Menachem Mendel Schneersohn.
One group was formed to succeed the seventh Chabad rebbe, Rabbi Menachem Mendel Schneerson.
The Malachim had one rebbe, Rabbi Chaim Avraham Dov Ber Levine (1859/1860–1938), also known as "The Malach" (lit.
[9][10][11] While Levine did not leave a successor, the Malachim group continues to maintain a yeshiva and minyan in Williamsburg, Brooklyn.
Deutch failed to gain broad support and was subsequently derided within the Chabad movement for the move.