"Hemophilia contributed to his death and his manner of death was accidental", the medical examiner saidin a statement.
A longtime confidant of media titan Rupert Murdoch who became a central figure in the conservative USA political movement, Ailes stood down at Fox in July a year ago under the cloud of a sexual harassmentlawsuit from former news host Gretchen Carlson - one of a string of such allegations against him.
"Hannity asked the media to leave Ailes" family alone to allow them to grieve. He advised at least four Republican presidents, President Donald Trump among them.
Anchors of the channel's morning show Fox & Friends were noticeably emotional in announcing Ailes' death.
"I am profoundly sad and heartbroken to reportthat my husband, Roger Ailes, passed away this morning", the statement read. Roger was a patriot, grateful to live in a country that gave him so much opportunity to work hard, to rise-and to give back. That helped catapult it to the top of the cable news network ratings.
"For better or worse & the ignominious end 2 his reign at Fox News, the impact of Roger Ailes on American politics & media was indisputable", he tweeted.
"Roger was a great patriot who never ceased fighting for his beliefs", the 86-year-old said in a statement.
FILE - In this January 30, 1996 file photo, Roger Ailes, left, speaks at a news conference as Rupert Murdoch looks on after it was announced that Ailes will be chairman and CEO of Fox News.
Ailes denied accusations that he built a culture at Fox that encouraged harassment, after a lawsuit by former Fox News anchor Gretchen Carlson prompted other women at the network, including high-profile anchor Megyn Kelly, to step forward with similar claims.
But Fox was in a real sense built on sexual harassment, in its preoccupation with the sexual sins of Bill Clinton and other Democrats. Ailes received $40.0 million in his exit package and Carlson received $20.0 million from her lawsuit. He had a profound influence on American politics and the news media, which he transformed.
Ailes began his television career in the early 1960s as a producer at The Mike Douglas Show in Cleveland, and went onto serve as media consultant for several Republican presidents, including Richard Nixon and Ronald Reagan.
Ailes had a storied career in television and politics.
Fox News, which Ailes started in 1996 with the backing of media mogul Rupert Murdoch, raised the temperature of on-air debate on US television, generally taking a hardline conservative view.
Fox had been the source of "politically motivated misinformation", wrote Brock and co-authors, accusing it of "brazenly broadcasting demonstrable lies and distortions, always with a conservative spin".
The ex-chairman and founder of Fox NewsRoger Ailes has died aged 77, his family says, APA reports quoting BBC.