Jamie-Lynn Sigler is mourning the loss of her brother, Adam Sigler, who died unexpectedly Wednesday, after falling into a coma due to a brain hemorrhage.

RIP Adam Sigler

Adam, 41, the eldest brother of the Sopranos actress, had been in the hospital since at least Nov. 8, according to a tweet sent out by Sigler’s close friend, Lance Bass asking for prayers.

Sigler, who has another older brother, Brian, frequently mentions her family on various social media accounts, sharing photos of her siblings and parents.