The Notorious B.I.G.‘s mom Voletta Wallace has died at 78.

The Monroe County Coroner’s Office announced her death in a press release Friday. Wallace died of natural causes in hospice care at her Stroudsburg, Pennsylvania, home.

The Notorious B.I.G., also known as Biggie Smalls, died in 1997 at 24 in a shooting. After her son’s death, she was dedicated to keeping his memory alive through advocacy and activism.

Last year, Wallace made headlines when she told Rolling Stone that she wanted to “slap the daylights” out of her son’s former friend and producer Sean “Diddy” Combs, the embattled music mogul who is facing federal sex crimes charges.

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