Cannes Film Festival: Whitney Houston's relatives attend photocall

February marked six years since Whitney Houston tragically passed away unexpectedly in a Beverly Hills hotel, aged 48. Festival: Whitney Houston's sister-in-law Patricia Houston, right, and niece Rayah Houston, left attended a photocall for the documentary Whitney at the Cannes Film Festival on Thursday Wearing a black patterned dress under a cream structured jacket and black suede booties, Patricia - who once served as Whitney's manager, cut an elegant figure for the daytime gathering. She was 48, Pictured in September 2004 Big event: Patricia and Raya were joined by Kevin Macdonald, Nicole David and Lisa Erspamer Crew: Kevin served as a director of the film, while Nicole and Lisa were on board as producers Mary Jones, Whitney's aunt who found her body in a bathtub in 2012, claims Whitney had told her she had been sexually abused by Dee Dee Warwick – sister of singer Dionne – between the ages of seven and nine. Manager: Patricia, married to Whitney's brother Gary Garland, served as the star's manager All together: They were joined by a host of others at the daytime event on the French Riviera, including Sam Rice-Edwards, Simon Chinn, Jonathan Chinn and Vanessa Tovell Stepping out in style: Wearing a black patterned dress under a cream structured jacket and black suede booties, Patricia cut an elegant figure Keeping it casual: British auteur Kevin stepped out in casually cool style for the event Mary claimed the abuse made Whitney ‘question her sexual preference’ – prompting her to demonstrate that she was heterosexual by marrying Bobby Brown. Explosive claims: Whitney Houston's family claim she was abused as a child by a female relative named Dee Dee Warwick.