Rupert Murdoch, 92, is engaged for the sixth time. Here's a complete timeline of his past marriages.

• Rupert Murdoch announced his engagement to Elena Zhukova, a 62-year-old retired biologist.

• They started dating last summer, and the former News Corp. chairman popped the question just months later.

• The engagement comes a year after he called off his last wedding only weeks after proposing.

On Thursday, less than a week shy of his 93rd birthday, Rupert Murdoch announced he is engaged.

The media mogul's engagement to Elena Zhukova, a 62-year-old retired molecular biologist, is his sixth. It comes less than a year after he called off his last engagement, to Ann Lesley Smith, a former model and police chaplain.

In all, he's been married four times.

Patricia Booker

Murdoch married his first wife, Patricia Booker, a former department store model and flight attendant when he was 25 years old in 1956. He married her against the wishes of his mother, Dame Elisabeth Murdoch, who reportedly regarded Booker as "less than" who she expected her son to marry, Vanity Fair reported.

The pair had a daughter together, Prudence, now 66, who sits on the board of Times Newspapers, a subsidiary of News Corp, London's Evening Standard reported.

Murdoch and Booker were married for 11 years before divorcing in 1967.

Anna Murdoch Mann

Shortly after his divorce from his first wife, Murdoch met his soon-to-be second bride, Anna Murdoch Mann, whose maiden name was Torv.

They first met when Murdoch Mann was 18 years old when she had the opportunity to interview Murdoch while she worked for the Sydney newspaper, The Daily Telegraph, which he later owned.

The media mogul and Scottish-Australian novelist were married for 32 years and had three children together: Elisabeth Murdoch, Lachlan Murdoch, and James Murdoch.

Though Murdoch's marriage with Anna was his longest, the couple did have a tumultuous relationship towards the end as rumors circulated that the media tycoon was having an affair with Wendi Deng, who was working as an intern for News Corp.-owned Star TV.

Murdoch and Torv divorced in 1999.

"I thought we had a wonderful, happy marriage," she said in an interview with Australian Women's Weekly in 2001. "Obviously we didn't."

Wendi Deng

Just 17 days after his divorce from Anna Murdoch Mann was finalized in June 1999, Murdoch, then 68, married Chinese-American entrepreneur Wendi Deng, who was 31 at the time, as reported by the Evening Standard.

The pair had met when Deng was a 29-year-old intern for Star TV, a Hong Kong television station owned by News Corp. They share two daughters, Grace and Chloe.