In a tribute, Williams wrote, “We know that your spirit will always be with us every day guiding us through this difficult time” Yolanda Favors/Instagram cousin Yolanda “Londie” Favors died on Wednesday, Aug. 7. She was 34.

cast member shared the news of her cousin and costar’s death in an tribute on Sunday, Aug. 11. A cause of death was not announced.

Williams, 43, began her caption with a quote from author E.A. Bucchianeri: “So it’s true, when all is said and done, grief is the price we pay for love.

” The photo she posted of Favors was emblazoned with a quote from author Renee Wood that read, “Your life was a blessing, your memory a treasure, and you are loved beyond words and will be missed beyond measure.” Favors would have celebrated her 35th birthday on Aug. 21.

Related: The alum also spoke to her cousin's legacy. “The impact and value you provided all of us during your time here was tremendous, but we know that your spirit will always be with us every day guiding us through this difficult time and what’s still to come,” she wrote. She concluded that their family is “eternally grateful” for Londie.

Charles Sykes/Bravo/NBCU Photo Bank via Getty Related: Williams’ cast members sent their condolences in the comments. “My sincerest condolences to you and your family. There is an old adage 'only the good die young' and Londie was better than good she was great," wrote.

"May God be pleased with her works and may peace, understanding and unspe.