Posted on Sun Jan 15, 2012 05:27 PM PDT
The Oscar-nominated actress took home a Best Actress award for her role as the late Ms. Monroe in My Week with Marilyn.
Williams, who donned a beautiful blue, velvet-embellished gown by Jason Wu, confessed during her acceptance speech:
"I consider myself a mother first and an actress second, and so the person I most want to thank is my daughter, my little girl, whose bravery and exuberance is the example that I take with me in my work and in my life."
Matilda Ledger is also the daughter of late actor Heath, and she was just two years old when he died suddenly in 2008.
The star also made sure to thank the Hollywood Foreign Press Association for honoring her with the same Award that Monroe had won "more than 50 years ago."
Next stop, the Oscars!
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