Final answer:
Robert Mugabe, the ex-President of Zimbabwe, was the leader removed from power at the age of 93 in November 2017.
Step-by-step explanation:
The former leader of an African nation who was removed from power in November 2017 at the age of 93 is Robert Mugabe, the ex-President of Zimbabwe. Mugabe was a dominant political figure in Zimbabwe for decades. He initially rose to power as a hero of the country's independence struggle, but his prolonged rule was marked by economic decline, corruption, and the erosion of democratic institutions.
Eventually, he was ousted by a military coup after internal power struggles within his own party, ZANU-PF. This event was a significant moment in African and world history, symbolizing the potential volatility of leadership and the challenges of maintaining good governance and democracy in post-colonial African states.