Cissy Houston, the mother of pop icon Whitney Houston, died Monday. She was 91.

Houston died Monday morning at her New Jersey home while under hospice care for Alzheimer’s disease, Houston’s daughter-in-law, Pat Houston, confirmed in a statement to USA TODAY.

“Our hearts are filled with pain and sadness. We lost the matriarch of our family,” Pat said in a statement. “Mother Cissy has been a strong and towering figure in our lives. A woman of deep faith and conviction, who cared greatly about family, ministry, and community. Her more than seven-decade career in music and entertainment will remain at the forefront of our hearts.”

Per The Associated Press:

Houston’s many credits included Franklin’s “Think” and “(You Make Me Feel Like) A Natural Woman,” Van Morrison’s “Brown Eyed Girl” and Dusty Springfield’s “Son of a Preacher Man.” The Sweet Inspirations also sang on stage with Presley, whom Houston would remember fondly for singing gospel during rehearsal breaks and telling her that she was “squirrelly.”

“At the end of our engagement with him, he gave me a bracelet inscribed with my name on the outside,” she wrote in her memoir “How Sweet the Sound,” published in 1998. “On the inside of the bracelet he had inscribed his nickname for me: Squirrelly.”

The Sweet Inspirations had their own top 20 single with the soul-rock “Sweet Inspiration,” made in the Memphis studio where Franklin and Springfield among others recorded hits and released four albums just in the late ‘60s. The group appeared on Van Morrison’s “Brown Eyed Girl” and sang background vocals for The Jimi Hendrix Experience on the song “Burning of the Midnight Lamp” in 1967.