Cooper Endicott, Joan Rivers’ Grandson: Instagram Pictures, Facts About Melissa Rivers’ Son (Not on Twitter)

(L-R) Television personality and actress Joan Rivers, Cooper Endicott, and television personality Melissa Rivers pose for a picture on location for the filming of her reality show 'Joan & Melissa: Joan Knows Best' at Theatre 80 St. Marks on September 3, 2011 in New York, United States. (Mike Coppola/Getty Images)

Cooper Endicott is Joan Rivers’ grandson and Melissa Rivers’ son.

Joan Rivers died on Thursday, and fans are wondering about Cooper and his life.

Cooper is already known to some for his consistent appearances on the Joan & Melissa Show, which followed Joan and Melissa as they went about their lives. The show aired for several seasons from 2011 through 2014.

Cooper is the son of John Endicott, whom Melissa married in 1998 and divorced in 2003. Though the couple broke up, Cooper spends time with his father. Endicott was taking care of Cooper recently while Melissa stayed with Joan at the hospital.

Edgar Cooper Endicott was named after Melissa’s father Edgar Rosenberg, who tragically committed suicide decades ago.

Melissa, talking about her son to the Daily Mail in 2011, said Edgar’s suicide still has a deep effect on her. “It hits me when I look at Cooper, because Dad’s not around to enjoy his grandson. Cooper knows my dad isn’t here, and one day I'll talk to him about it, but there’s no need for a ten-year-old to know about these things.”

She added about Cooper: “My son Cooper has just turned ten and the sarcasm fairy has already started to take up residence inside his body. Not only am I living with my mother – again! – but I’ve also got her mini-me to contend with.”

OK Magazine told her that Cooper “might be the most normal child on reality TV.”

“Well that’s because he is, and I think it’s all recessive genetics to be honest. First of all, I’m very lucky, I have intrinsically a good kid. And I know how lucky I’ve been since day one. He’s always been fairly easy. I had Cooper in December and was back on the red carpet in January. I picked him up and took him to work with me, you know took him to my dressing room. So he’s been raised the same way I was, which is that work is such a big part of our lives,” she said.

“I’m so blessed because he’s so normal. You know what? I’m just lucky. And I do try to keep very clear delineations about what is TV and what is private. I’m very clear on what he participates in and what of his life is shown, much more than I am with mine. I know clearly where the line is with him.”

Melissa has seen how Cooper is getting older, putting a caption on one recent picture she shared of her son on Instagram: “My friend Chris took this pic. So cool. #mybabyisgrowingup.”