Rani Mangammal of Madrai
When her son, Rangakrishna Muthu Virappa Nayak died, her daugter-in-law committed sati. Mangammal became regent for her grandson, Vijaya Ranga Chokkanatha, who was crowned at the age of 3 months, ruling with an Advisory Council. She was a popular administrator and is still widely remembered as a maker of roads and avenues, and a builder of temples and tanks with many of her public works still in use. She is also known for her diplomatic and political skills and successful military campaigns.