The charity, which she is patron, was founded by her brother Mark in 2002, however he tragically died in 2014 after a horrible accident.
"Mark died at the end of an evening in which he had raised $1.7 million for his beloved elephants," Penny Junor wrote in her 2017 biography The Duchess.
He had stepped outside for a cigarette after the event when he fell and hit his head on the pavement. As a result, his family had to make the tough decision to turn off his life support.
"A post-mortem revealed that his skull had been unusually thin in places," Ms Junor explained.
Had it been thicker he may of survived."
Mark's death was heartbreaking for his family, particularly Camilla.
"Camilla found it particularly difficult," Ms Junor continued.
"Her family still worry for her. Amoungst other things, they worry she hasn't properly processed the grief of her brother's death and that she is still living in her nerves.
Camilla and Prince Charles have since become joint presidents of the Elephant Family.
"She is furthering Mark's dream but she can't talk about him. Some in her family eel that there is a side of her that's trying to hold everything together because she fears that if she is allows the smallest chink in the armour, the entire suit will shatter."
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