Tina Knowles Files for Divorce

For months there have been rumors that Tina and Richard Lawson's marriage was on the rocks [click here if you missed that].

The rumors were true...

From TMZ

Beyoncé's mom, Tina Knowles, is pulling the plug on her second marriage ... filing for divorce from her actor husband, Richard Lawson, after 8 years of marriage.

Tina beelined it to court Wednesday and filed for divorce ... this according to new legal docs obtained by TMZ.

She lists the date of separation as Tuesday, and Tina is rolling with the usual irreconcilable differences as the reason for the split.

In the docs, Tina is asking the court to terminate the court’s ability to award spousal support to her or Richard.

Tina's apparently changed her name to Celestine Lawson when she married Richard ... and now she wants to have her named restored to Celestine Knowles.