Following the Queen's death at the age of 96, the royal family will be supporting each other immensely over the coming weeks and months. As Charles becomes King, there are big changes in store for his wife Camilla, now Queen Consort, and his two children, Prince William and Prince Harry.
The King will also lean on his siblings, Princess Anne, Prince Andrew and Prince Edward, as the four of them grieve the loss of their mother. Being the eldest son, Charles has been passed on enormous responsibilities handed down by generations of royal monarchs.
For the latest updates as the world mourns the Queen and King Charles III's reign begins, follow our live blog.