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Teresa Giudice, Antonia Gorga

Gilbert Carrasquillo/Getty Images

UPDATE:

Teresa Giudice took to Instagram late Saturday night with a message for her fans.

"Thank you for the love and support during this extremely difficult time. My mother was a very cherished part of our family and she'll be deeply missed. Each and every one of your messages of love & support are so appreciated. Give her eternal rest O Lord and may your light shine on her forever," she wrote alongside a photo collage of her family.

The Real Housewives of New Jersey cast member Teresa Giudice and brother Joe Gorga are mourning the death of their mother Antonia Gorga.

The matriarch passed away at age 66 of natural causes Friday, E! News has learned. Teresa and Joe have not commented.

Antonia is survived by Teresa, Joe, their father Giacinto Gorga and seven grandchildren—Teresa and husband Joe Giudice's four daughters and Joe and RHONJ cast member Melissa Gorga's two sons and daughter, who is named after Antonia.

Teresa and Joe;s mother had made several appearances on The Real Housewives of New Jersey over the years and had joined the family in supporting Teresa amid her legal turmoil over the past couple of years.

The reality star and mother of four daughters served 11 months in a federal prison for fraud in 2015, while her husband Joe Giudice began a 41-month sentence almost exactly one year ago.

With my beautiful Mamma

A post shared by Teresa Giudice (@teresagiudice) on

Happy Mother's Day to my beautiful mamma. Ti amo tanto mamma! ??

A post shared by Teresa Giudice (@teresagiudice) on

Happy Birthday Mama adore you and Papa ??????#bestparents #daughterslove

A post shared by Teresa Giudice (@teresagiudice) on

Happy Birthday to Mia Mama ??????

A post shared by Teresa Giudice (@teresagiudice) on

Happy Birthday Nonna We Love You ????#7grandchildren

A post shared by Teresa Giudice (@teresagiudice) on

Teresa often paid tribute to her mother on Instagram.

"Happy Birthday to my beautiful MAMA!" she wrote in October, when she celebrated Antonia's birthday. "I am the person I am because of you love you with all my heart."

(This story was originally published on Saturday, March 4, 2017 at 2:51 p.m.)