1922 Dhabyani coup d'état
1922 CE.
Shown on the map at 24.280°, 54.220°.
In 1922 Sheikh Sultan Al Nahyan, with a coalition of his brothers Hazza and Saqr staged a palace coup in Abu Dhabi killing their brother Hamdan, the ruling emir at the time, and crowned Sultan in his place.
Text from the Wikipedia article 1922 Dhabyani coup d'état, licensed CC BY-SA 4.0.