Baby Victoria (daughter of Constance Marten & Mark Gordon)
Newborn Victoria died in early 2023 while her parents, Constance Marten and Mark Gordon, were living in a tent on the South Downs to avoid social services. Her body was found in a shopping bag in a disused shed in Brighton two days after their arrest on February 27, 2023. Both parents were convicted of gross negligence manslaughter in July 2025 and sentenced to 14 years.
- Status
- Conviction
- Type
- Homicide
- Date
- January-February 2023 (exact date of death unknown)
- Location
- Brighton, United Kingdom
- Age
- 0
- Gender
- Female
- Decade
- 2020s
- Open
- Partly resolved
- Charges or trial
- ClosedConviction
At least one person was convicted in connection with the case.
Case background and investigation
Victoria was the fifth child of Constance Marten and Mark Gordon, who had been a couple since 2016. According to the Crown Prosecution Service (CPS), their four older children had been taken into care, and the couple went on the run in late December 2022, when Marten was heavily pregnant, in order to keep the new baby. Marten gave birth in secret. The CPS states that the exact dates of Victoria's birth and death are not known.
Police first learned that a baby existed on January 5, 2023, when a placenta wrapped in a towel was found in a car that had caught fire on the M61 motorway near Bolton, Greater Manchester. The couple left the scene, and a national appeal was launched. According to the CPS, they travelled long distances by taxi, avoided using bank cards and phones, and spent time near ports. From about January 8, 2023, they were living in a tent in the South Downs National Park in East Sussex in near-freezing conditions. Witnesses and CCTV showed the baby dressed only in a babygrow, the CPS said.
Marten and Gordon were arrested in Brighton on February 27, 2023, after about seven weeks of searching. According to the CPS, they did not answer questions about the baby. Two days later, Victoria's body was found in a shopping bag inside a disused shed in Brighton. Wikipedia's account, citing news coverage, dates the discovery to March 1, 2023, places it on an allotment in the Hollingdean area, and says the couple were charged on March 3, 2023.
At a first trial at the Old Bailey in 2024, the jury could not reach a verdict on manslaughter. The CPS states that both defendants were convicted at that trial of concealing the birth of a child, cruelty to a child and perverting the course of justice. The CPS sought a retrial and presented additional expert evidence on weather conditions and the risk of hypothermia from damp clothing and condensation in the tent. On July 14, 2025, the retrial jury found both guilty of gross negligence manslaughter, as reported by CBS News.
On September 15, 2025, Judge Mark Lucraft sentenced Marten to 14 years in prison and Gordon to 14 years with a four-year extended licence period, with shorter concurrent terms for the other offences, according to the CPS. CBS News and later press reports state that the judge concluded the baby died of hypothermia and rejected the parents' account that she died accidentally while Marten slept with her in the tent. Wikipedia notes that the cause of death could not be medically ascertained.
In August 2026, ITV News and the Telegraph reported that Marten had been granted permission to appeal against her sentence and had renewed an application for permission to appeal against her manslaughter conviction. No hearing date had been set at the time of those reports.
Timeline
-
December 2022Marten, heavily pregnant, and Gordon go on the run, according to the CPS.
-
January 5, 2023A placenta is found in the couple's burning car on the M61 near Bolton; police begin a national search.
-
January 8, 2023The couple reach East Sussex and begin living in a tent on the South Downs with the baby.
-
February 27, 2023Marten and Gordon are arrested in Brighton without the baby.
-
March 1, 2023Victoria's body is found in a shopping bag in a disused shed in Brighton.
-
2024First Old Bailey trial: both convicted of concealing the birth of a child, child cruelty and perverting the course of justice; jury cannot agree on manslaughter.
-
July 14, 2025Retrial jury convicts both of gross negligence manslaughter.
-
September 15, 2025Marten sentenced to 14 years; Gordon to 14 years plus four years on extended licence.
-
August 2026Marten is reported to have been granted permission to appeal against her sentence; her renewed application to appeal the conviction is pending.
Sources
References used for this entry. ColdCaseIndex is an index of public information. To report an error, email info@coldcaseindex.com.
- Crown Prosecution Service - UPDATED WITH SENTENCE: Couple convicted of manslaughter after death of newborn baby
- CBS News - British aristocrat Constance Marten and her partner Mark Gordon found guilty over baby daughter's death
- CBS News - U.K. aristocrat and her partner get 14 years in prison for baby daughter's death
- Stratford Herald (PA) - Constance Marten granted permission to appeal sentence for killing her baby
- Wikipedia - Constance Marten and Mark Gordon
- Wikipedia - Constance Marten
About this entry
This case is recorded as conviction and is kept in the index for its historical and investigative significance. At least one person was convicted in connection with the case.
To report an error on this page, email info@coldcaseindex.com.
Entry last updated September 29, 2026.
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