William became aware of HIV/AIDS in the mid-1990s when he accompanied his mother and brother on visits to shelters and clinics for sufferers . In January 2005 , William and his brother volunteered at a British Red Cross aid distribution centre to pack emergency supplies for countries affected by the 2004 Boxing Day tsunami . In September that year , William granted his patronage to Centrepoint , a charity that assists the homeless
2004 Boxing Day tsunami
2004 Indian Ocean earthquake and tsunami
Prince William, Duke of Cambridge