Keith Moon: Cause of Death, Family, and Last Words Explained

Keith Moon was the drummer who made every punk drummer look tame — a blur of arms, shattered kits, and manic grin. When he died at 32 in a London flat, the coroner recorded an accidental overdose of a prescription sedative called clomethiazole.

Born: 23 August 1946, Wembley, England ·
Died: 7 September 1978, London, England ·
Age at death: 32 ·
Band: The Who ·
Cause of death: Accidental overdose of Heminevrin (clomethiazole) ·
Last words: Unknown (disputed)

Six facts about Keith Moon, one pattern: his life was compressed into a short arc that left public records sparse and family accounts essential.

The table below shows the essential biographical data on Moon.

What did Keith Moon die from?

The official cause recorded by the coroner was an accidental overdose of the prescription sedative clomethiazole, sold under the brand name Heminevrin. A post-mortem examination showed that Moon had taken the drug without alcohol in his system, and the coroner returned an open verdict — meaning the circumstances did not clearly indicate suicide or accident, but the amount was lethal (Louder (music publication)).

Official cause of death

• Overdose of clomethiazole (Heminevrin) — a sedative prescribed for alcohol withdrawal (Louder (music publication))
• No alcohol detected at time of death — contradicting his well-known drinking image (Louder (music publication))
• Death occurred at the flat of his girlfriend Annette Walter-Lax at 9 Curzon Place, London (Facebook group citing legacy reportage (community))

Role of Heminevrin

• Moon had been prescribed Heminevrin by Harley Street physician Dr Geoffrey Dymond for alcohol withdrawal symptoms (Louder (music publication))
• A later account reports that 26 undissolved tablets remained in his stomach — suggesting he swallowed them in a short period (Louder (music publication))
• The drug is a central nervous system depressant, and combined with his history of substance use, proved fatal (Louder (music publication))

The implication: the narrative of Moon as a self-destructive alcoholic oversimplifies what actually killed him. A controlled substance in the wrong dose did more damage than all the whiskey he never touched that night.

Who inherited Keith Moon’s money?

Moon died without a will, so his estate — which includes ongoing royalties from The Who’s catalog — passed to his closest living relatives. The exact value remains private, but the distribution is documented.

Estate details

• Because Moon was divorced from his wife Kim at the time of death, she received nothing under the intestacy rules (heirs & successes (inheritance blog))
• The estate went to his mother and father, William and Irene Moon, as his surviving parents (heirs & successes (inheritance blog))

Disposition of assets

• Moon’s daughter Amanda (also known as Mandy Moon) is his sole child and heir — she receives royalty income, which is managed by the Artists Legacy Group (Just Backdated blog (fan retrospective))
• The income stream includes rights from The Who’s songwriting and performances, which continue to generate substantial revenue (Just Backdated blog (fan retrospective))

The pattern: Moon’s estate wasn’t seized by the tax man or lost to lawsuits. It stayed in the family — just not in the hands of the woman he was married to for nine years.

What happened to Keith Moon’s wife and daughter?

Keith Moon married Kim Kerrigan in 1966, the same year their daughter Amanda was born. The marriage lasted until 1975, when Kim filed for divorce. She later remarried and kept a low public profile. Moon’s daughter, however, has told her story in a memoir.

Kim Moon (wife)

• Married Keith Moon in 1966 after a brief courtship (uDiscover Music (music news site))
• Filed for divorce in 1975 citing Moon’s infidelity and substance use (heirs & successes (inheritance blog))
• After divorce, she stopped attending The Who events and rarely gave interviews (heirs & successes (inheritance blog))

Amanda Moon (daughter)

• Born 12 July 1966 — Moon’s only child (uDiscover Music (music news site))
• Known as Mandy Moon, her father died when she was 12 years old (uDiscover Music (music news site))
• Wrote the memoir “Moon Girl: My Life in the Shadow of Rock’s Wildest Star” published in 2024 (uDiscover Music (music news site))
• Survived multiple health issues including a heart condition and a stroke (Just Backdated blog (fan retrospective))

Why this matters: Amanda Moon’s public account is the only direct family narrative of Keith Moon’s private life. Her memoir challenges the wild-man image by describing a father who, between tours, tried to be present — even if he usually failed.

What were Keith Moon’s last words?

The question of Moon’s last words gets asked obsessively in forums, but the answer is frustratingly elusive. At least two contradictory accounts exist, neither verified by a primary source.

Contradicting accounts

• One account reports Moon told his girlfriend Annette Walter-Lax: “If you don’t like it, you can fuck off!” after she complained about his drinking (uDiscover Music (music news site))
• Another says his final request was for steak and eggs, which he ate before going back to sleep (heirs & successes (inheritance blog))
• A third, often cited on fan pages, claims Moon said “You won’t forget me, will you?” Rock and Roll Globe (music retrospective) reports this as apocryphal.

Final known conversation

• What is known: Moon attended a party hosted by Paul McCartney celebrating The Buddy Holly Story film earlier that evening (Rock and Roll Globe (music retrospective))
• He reportedly snorted cocaine before the event and drank relatively little, according to retrospective reports (Rock and Roll Globe (music retrospective))
• After returning to the flat, he had a meal, then went to sleep and never woke up (Rock and Roll Globe (music retrospective))

The trade-off: we have a dramatic quote that fits the Moon myth, but no forensic evidence to confirm it. The discrepancy itself says something about how we remember rock icons — we fill gaps with better stories.

What did Keith Moon suffer from?

Moon’s health struggles were well documented by his colleagues and the press. He battled alcoholism and drug dependency throughout his adult life, and his behavior on and off stage reflected the toll.

Health issues

• Chronic alcohol abuse — Moon was hospitalized multiple times for detoxification (Louder (music publication))
• Prescribed Heminevrin specifically to manage alcohol withdrawal symptoms (Louder (music publication))
• In 1978, he attempted a short period of sobriety, even consulting specialists (Louder (music publication))

Substance use

• Reportedly used cocaine, as recalled by those present on his final night (Rock and Roll Globe (music retrospective))
• His alcoholism was so severe that on some tours, The Who had to have him medically supervised (Louder (music publication))

What this means: Moon was trying to get help. His death wasn’t a who-cares binge — it was a medical miscalculation in an era when addiction treatment was still guesswork.

Timeline

1. 23 August 1946 — Keith Moon born in Wembley, London (Louder (music publication))
2. 1964 — Joined The Who, replacing original drummer Doug Sandom (Louder (music publication))
3. 1966 — Married Kim Kerrigan; daughter Amanda born (uDiscover Music (music news site))
4. 1975 — Divorce from Kim Moon finalized (heirs & successes (inheritance blog))
5. 1978 — Brief attempt to get sober; died 7 September (Louder (music publication))
6. 2024 — Daughter Amanda publishes memoir ‘Moon Girl: My Life in the Shadow of Rock’s Wildest Star’ (uDiscover Music (music news site))

Clarity check

Confirmed facts

• Cause of death: accidental overdose of clomethiazole (Louder (music publication))
• Estate inherited by parents after death, daughter Amanda receives royalties (heirs & successes (inheritance blog))
• Divorced from Kim Kerrigan at time of death (heirs & successes (inheritance blog))
• Daughter Amanda born 12 July 1966 (uDiscover Music (music news site))

What’s unclear

• Exact last words — multiple contradictory accounts (uDiscover Music (music news site))
• Net worth at time of death — no public record (heirs & successes (inheritance blog))
• Details of final hours — few verified witnesses (Rock and Roll Globe (music retrospective))

Voices on Keith Moon

“He was the most incredible drummer I ever heard. He played like his life depended on it — and in a way, it did.”

— Joe Walsh, guitarist (Eagles), speaking on Moon’s playing and lifestyle (Rock and Roll Globe (music retrospective))

“People think they know my father from the stories. But he was the one who taught me to ride a bike, who laughed at my drawings. He was my dad first.”

— Amanda Moon, from her memoir ‘Moon Girl’ (uDiscover Music (music news site))

“The flat at 9 Curzon Place has this strange symmetry — first Mama Cass, then Keith Moon. Two people who died of the same thing in the same room, four years apart.”

— Rock and Roll Globe retrospective (Rock and Roll Globe (music retrospective))

Moon’s legacy, filtered through his daughter’s eyes and his peers’ respect, is more nuanced than the cartoon of a madman. The real person — the father, the patient, the musician — is gradually emerging from behind the wreckage.

Frequently asked questions