Celebrated author and playwright Gore Vidal died Tuesday in his Hollywood Hills, California home. He was 86.

Vidal was preceded in death by his partner of 53 years, Howard Austen, and will be buried next to him in a cemetery in Washington D.C.

According to the Los Angeles Times, Vidal died of complications from pneumonia. His nephew, Burr Steers, said he had been living alone and had been sick for “quite a while.”

The prolific Vidal wrote more than 25 novels, 25 works of non-fiction, 15 screenplays and 10 plays. His political play, The Best Man, is currently playing on Broadway.

He had affairs with both men and women, including a brief engagement to Joanne Woodward, before she married Paul Newman.

“It's easy to sustain a relationship when sex plays no part and impossible, I have observed, when it does,” Vidal wrote of this lengthy relationship with Austen, whom he met in 1950.

His third book, The City and the Pillar (1948), is credited for being the first American novel to include an honest and positive portrayal of gay love and earned him fame. But Vidal bristled at being labeled gay, saying there were only homosexual acts, not persons.