Rosalynn Carter, former first lady of the United States, dead at 96

• Rosalynn Carter has died at 96, the Carter Center reported.
• The former first lady long advocated for people with mental illness.
• Her 77-year marriage to Jimmy Carter was the longest marriage of any presidential couple ever.

Rosalynn Carter, the former first lady of the United States, died Sunday at 96.

After a brief period in hospice, announced on November 17, Carter died at home surrounded by friends, family, and her husband, former President Jimmy Carter.

Earlier this year, the Carter Center announced that Carter had been diagnosed with dementia.