According to the laws and tradition of Islam, which Baháʼulláh would have been following at the time of his marriages, a man is allowed four wives. Baháʼí marriage laws were written in the Kitáb-i-Aqdas more than ten years after his last marriage.

How many wives bahaullah had?

Baháulláh had a total of three wives, as was religiously permissible at the time. His first wife died before He did, and was not a covenant breaker. It seems unlikely that she would have become one.