Everything you need to know about Hugh Hefner's 4 children, who could inherit his Playboy empire

Christie is Hugh's oldest child, and older sister to David. Her mother is Mildred Williams, Hugh's first wife. 

Christie, like her half brother Cooper, was very involved in the unconventional family business. She worked at Playboy for over 30 years and served as its CEO for 20. Christie became the president of Playboy Enterprises in 1982, and CEO in 1988. She started working for the company in 1975.

She stepped down in 2009, saying that the election of President Barack Obama inspired her to do more charitable work. 

She established the Hugh M. First Amendment Award and helped raise $30 million for CORE Chicago, the first outpatient facility for AIDS. She has delivered various talks on criminal justice and prevention of drug abuse, and has been listed in the Forbes 100 Most Powerful Women in the World multiple times.

Source: Biography

David is Hefner's eldest son, and the second child from Hugh's first marriage to Mildred Williams. Mildred and Hugh married in in 1949, and got divorced in 1959.

David has mostly stayed out of the spotlight, and away from the Playboy lifestyle, which is definitely not for everybody. It's mostly unknown what David does since he is so private. Some reports have said that he owns a computer company, and others have said that he is a computer graphics specialist for independent films.

In 2012, Hugh tweeted a photo with David, which has since been deleted. 

Marston is the first child of Hefner and his second wife, Kimberly Conrad, and Cooper's older brother. For the first eight years of his his life, he lived in the Playboy Mansion. He's gotten into a bit more trouble than his brother Cooper.

In 2012, Marston was arrested for allegedly attacking his girlfriend, Playboy Playmate Claire Sinclair, and he was sentenced to 52 weeks in a domestic violence program. The court also ordered him to stay away from Sinclair for three years.  

Marston has an unverified Twitter account with about 21,000 followers. His bio says "writer and gamer." He writes under the name Marston Glenn, and apparently wrote a "zombie book" called "Bleed."

Cooper, the youngest of Hefner's four children, has achieved quite a lot at age 26. He is the Chief Creative Officer at Playboy Enterprises, the founder and former CEO of upstart media company HOP, and a member of the California State Military Reserve.

Cooper's mother is Kimberly Conrad, Hefner's second wife and former Playmate of the Year. Conrad and Hefner divorced in 2010 after 11 years of separation.

Cooper confirmed his father's death with a statement to People on behalf of the company: 

"My father lived an exceptional and impactful life as a media and cultural pioneer and a leading voice behind some of the most significant social and cultural movements of our time in advocating free speech, civil rights and sexual freedom. He defined a lifestyle and ethos that lie at the heart of the Playboy brand, one of the most recognizable and enduring in history. He will be greatly missed by many, including his wife Crystal, my sister Christie and my brothers David and Marston, and all of us at Playboy Enterprises."

He grew up at the Playboy mansion, and you can follow his lavish lifestyle on Instagram.