The legendary co-founding member, former bassist and primary lyricist of Black Sabbath, Geezer Butler posted a heartwrenching tweet on his official Twitter account and announced his older sister, Eileen’s death.

As you will see the photo below, Geezer shared a beautiful frame of his sibling sister and mourned her passing away.

Here is what Geezer wrote:

“Farewell my dear sister Eileen. Rest in peace.”

You can see Geezer’s tweet and other reactions below.