King Charles is dedicating a recorded speech to his late mother, Queen Elizabeth, on her 100th birthday. The speech will be part of several events marking the monarch's centennial birthday and renewing his vow of service to the nation and the Commonwealth. King Charles will also host a special reception at Buckingham Palace marking Queen Elizabeth's 100th birth. This celebration comes amid a difficult start to his reign following his cancer treatment, estranged relationship with his younger son Prince Harry, and the attention surrounding his disgraced brother's ties to convicted sex offender Jeffrey Epstein.