Siyabonga Shelembe, 37, who enlisted the help of three men to murder his "rich aunt", has been sentenced to life imprisonment by the KwaZulu-Natal High Court in Pietermaritzburg.
Shelembe's accomplices - Thandolwethu Sibisi, 23, Sphelele Cele, 21, and Thobani Mkhize, 24 - were also sentenced for their role in the murder.
The court found Shelembe organised a hit on 53-year-old Tholakele Cynthia Shange because he believed her success emanated from bewitching family members.