Courtney Love is insane. That's common knowledge among music and gossip fans. But this time, her antics may have led to serious consequences.

The troubled rock star has lost legal custody of daughter Frances Bean Cobain, her only child with late husband Kurt Cobain, according to reports.

It's unclear what prompted the legal change of Frances Bean's custody status, which is confirmed in documents filed Friday in L.A. Superior Court.

Maybe Court's complete lack of coherent thoughts lately?

Love's Facebook and Twitter pages have recently devolved into rambling, incomprehensible diatribes, though, leading THG to question her sanity.

We're talking even more than we otherwise would.

Courtney Love with Frances Bean Cobain, her only child with Kurt Cobain.

Gossip Girl star Taylor Momsen, Edward Norton, trustees of her daughter's trust fund, Lindsay Lohan Britney Spears - no one is safe from Love's rants.

But 17-year-old Frances Bean Cobain is safe, at least for now, thanks to a ruling that named Kurt Cobain's mother and sister as legal guardians.

As guardians of Frances Bean Cobain, Wendy O'Connor and Kimberly Cobain are in charge of her education, living situation, health care and finances.

There was no end date set for this arrangement, but either Love will regain custody per court order or Frances will cease being a minor in August.

Love was not present for the decision. Her publicist, Alan Nierob, who really needs to get her Facebook page under control, denied further comment.

A lawyer for Kurt Cobain's mother and sister said this is a private family matter and no statement would be issued on the reason behind the move.