Britain's royal family is leading commemorations for what would be the 100th birthday of the late Queen Elizabeth II.
The queen is being remembered in a service at Westminster Abbey.
The president and first lady were among some 2,000 people attending the funeral at Westminster Abbey.
The queen was a great-grandmother of 12 at the time of her death.
Prince Andrew, the Duke of York, will look after the dogs after they return to live with him and Sarah Ferguson, the Duchess of York, at Royal Lodge in Berkshire, England, a source close to Prince Andrew told ABC News.
King Charles III says he feels "profound sorrow" over the death of his mother, Queen Elizabeth II, and vows to carry on her "lifelong service" to the nation.