Sharon Osbourne is grieving the loss of her late husband, Ozzy Osbourne, after his shocking death last week at 76. An insider close to the TV personality revealed that the Black Sabbath legend’s passing has left Sharon, 72, so devastated that their children have had to step in to take care of her.

The source tells PEOPLE that Sharon has found "a lot of comfort" from the "family time" they spent together before his death on July 22NEED TO KNOWA source tells PEOPLE that Sharon Osbourne is "heartbroken" over Ozzy Osbourne's deathThe Black Sabbath rocker died at age 76 on July 22"She's been the rock of this family for decades,