Reply To: Chief Rabbi of Bnei Brak HaGaon HaRav Moshe Yehuda Leib Landau – a Lubavitcher?

He inherited it from his father, who was also a Lubavitcher. When he was appointed, in 1936, Bnei Brak was a very different place, and there was no reason to be surprised at the appointment of a Lubavitcher rov.