1.   A year later his father, Sheik Khalifa, deposed his cousin Sheik Ahmed while he was on a falconing trip in Iran.

2.   Sheik Khalifa himself came to power after deposing his cousin.

3.   Sheik Khalifa himself had taken power after deposing his cousin.

4.   The ousted emir, Sheik Khalifa bin Hamad Al Thani, himself came to power after deposing his cousin.