What: The monarch of the British Commonwealth, Queen Elizabeth II passed away at the age of 96. She ruled over the former colonies and commonwealth countries for 70 years and remains the longest-serving monarch.
Protocol: On the day of her passing, the news will first be communicated by her private secretary, who would ring the British prime minister and state 'London bridge is down.' The protocol was devised in 1960 and comprises the rules and procedure of sending in communication posts the demise of the monarch, funeral ceremony and succession
What next: Leaders across the world including PM Modi expressed grief over her demise. Notably, the Queen met UK PM-elect Liz truss a day before she passed away. She will be laid to rest at Windsor Castle. Following this, her son Prince Charles would be proclaimed the king.