"We are saddened to announce the passing of Mr. Walter Kwok, who left this world peacefully on the morning of October 20th, with his loving family by his bedside," Walter's wife, Wendy Kwok, said in a statement announcing his death, according to Forbes. "We would like to extend our sincerest gratitude to the supportive team of doctors and nurses, as well as to all our relatives, friends and business acquaintances for their loving care and concern."
Walter was 68 and had a net worth of $6.9 billion at the time of his death, according to Forbes. Walter left his fortune to his sons, Geoffrey and Jonathan, who instantly became billionaires upon his death, according to Bloomberg. His daughter, Lesley, works as a Director of Sun Hung Kai subsidiary Empire Group Holdings.
In the memorial book at Walter's funeral, Raymond wrote, "I remain grateful for knowing you as my brother, you will remain my brother," according to Forbes.