The 41st president of the United States, George HW Bush, has died at the age of 94.
The Second World War hero, who also presided during the collapse of the Soviet Union and the final months of the Cold War, died shortly after 10pm on Friday, family spokesman Jim McGrath said.
His wife of more than 70 years, Barbara Bush, died in April.
Mr Bush's son, George W Bush, described his father as a "man of the highest character and the best dad a son or daughter could ask for".
In a statement, he added: "The entire Bush family is deeply grateful for 41's life and love, for the compassion of those who have cared and prayed for Dad, and for the condolences of our friends and fellow citizens."
The former president served from 1989 to 1993, and eight years later watched his son George W became the 43rd president - only the second father-and-son chief executives, following John Adams and John Quincy Adams.
His approval ratings reached nearly 90% whilst he was President, and he came into office pledging to make the United States a "kinder, gentler" nation and calling on Americans to volunteer for good causes, to create "a thousand points of light".
Paying tribute to Mr Bush, current US president Donald Trump praised his "sound judgment, common sense and unflappable leadership".
In a joint statement with wife Melania, he added: "Through his essential authenticity, disarming wit, and unwavering commitment to faith, family and country, President Bush inspired generations of his fellow Americans to public service - to be, in his words, "a thousand points of light" illuminating the greatness, hope and opportunity of America to the world.
"President Bush always found a way to set the bar higher."
He said: "Along with his full life of service to country, we will remember President Bush for his devotion to family - especially the love of his life, Barbara.
"His example lives on, and will continue to stir future Americans to pursue a greater cause."