Lesotho’s Appeal Court revoked her bail last week on suspicion that procedure was not followed correctly when her bail was granted.
Thabane was transferred to court, where she wore a fur coat and black protective anti-coronavirus mask, a Reuters witness said.
The date for a new bail application was set as June 6.
Maesaiah Thabane has been charged with ordering the killing of Lipolelo Thabane, her love rival, who was shot dead near her home in Lesotho’s capital, Maseru, in June, 2017. Maesaiah Thabane was released on bail in February.
Lipolelo was estranged from Thomas Thabane at the time of the murder.