At what age did Siddhartha Gautama begin the great renunciation?

Siddhartha Gautama, who later became known as the Buddha, began his great renunciation at the age of 29.12

After living a sheltered life of luxury, he was moved to renounce his wealth and family following a series of experiences known as the Four Signs, during which he observed the realities of aging, sickness, and death. This decision marked the beginning of his journey toward enlightenment, leading him to pursue a life of asceticism before ultimately discovering the path to liberation from suffering.12