Former first lady Barbara Bush died on Tuesday evening at the age of 92, according to a spokesman for the family.

The wife of the 41st president of the United States, George H.W. Bush, as well as the mother of the 43rd president, George W. Bush, Barbara served as the country's first lady from 1989 to 1993​.

After battling several serious health concerns over the last ten years—including pneumonia, a perforated ulcer, and heart surgery—a family spokesman issued a statement on Sunday that said she had decided not to seek additional medical treatment.

"Following a recent series of hospitalizations, and after consulting her family and doctors, Mrs. Bush, now age 92, has decided not to seek additional medical treatment and will instead focus on comfort care," the statement read. "It will not surprise those who know her that Barbara Bush has been a rock in the face of her failing health, worrying not for herself—thanks to her abiding faith—but for others. She is surrounded by a family she adores, and appreciates the many kind messages and especially the prayers she is receiving."

Barbara's passing has been met with an outpouring of positive messages from political leaders and public figures around the world. Her son, George W. Bush, said, "My dear mother has passed on at age 92. Laura, Barbara, Jenna, and I are sad, but our souls are settled because we know hers was. Barbara Bush was a fabulous first lady and a woman unlike any other who brought levity, love, and literacy to millions." See his full statement and other responses below.