The US Presidential nominee often described Madelyn Payne Dunham as a pillar of strength and the cornerstone of his family. It was Dunham who raised Obama.
"She has gone home. She died peacefully in her sleep," said an emotional Obama at a rally in North Carolina.
The family said in a statement, "She was the cornerstone of our family, and a woman of extraordinary accomplishment, strength, and humility. She was the person who encouraged and allowed us to take chances."
Such was the affection that Obama took a break from campaigning last month and went to Hawaii to be with Dunham when her health deteriorated.
Image: Obama breaks down while speaking about his grandmother during a rally at University of North Carolina on Monday night.
Photograph: AFP/Getty Images
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