Vera Renczi

On 17 March 2012, a depiction of Renczi appeared in the Daily Mirror, but it was proved to be a misidentified 2004 photograph, and an apology was printed.

In 2005, The Discovery Channel's three-part series Deadly Women recounted the history of Renczi, portrayed through reenactments and commentaries from FBI agents and criminal profiler Candice DeLong and a forensic pathologist. Renczi was featured in the series' first episode titled "Obsession", where she is described as having killed her victims in the "1930s in Bucharest, Romania". As for her motivation, the voice-over says that "modern analysis suggest she was simply looking for love".

She was convicted of 35 murders and sentenced to death, but, at that time, Yugoslavia did not execute women. She was instead condemned to life in prison. During her trial, she had started showing signs of dementia. It became worse and worse in prison (she ended up talking to her victims and screaming obscenities). She died in 1960. Some have speculated that Renczi's story may have inspired Joseph Kesselring's play Arsenic and Old Lace, yet this is incorrect. It was the Amy Archer-Gilligan case which the playwright used as his model.

Most sources place the murders at Berkerekul, Yugoslavia (present-day Serbia), or Bečkerek, which changed the name to Zrenjanin in 1946; although, the spelling Berkerekul is unknown for this city. In 1972, the Guinness Book of World Records found no authoritative sources to support the claim that 35 people were killed by Renczi in early 20th-century Austro Hungarian Empire.

Journalist Otto Tolischus published the earliest known article in the United States in May 1925 based on letters from the readers without naming any reference. Renczi's story has surfaced repeatedly, but without traceable details such as specific dates of her birth, marriages, arrest, conviction, incarceration or death.

Vera Renczi (dubbed the Black Widow, Mrs. Poison or Chatelaine of Berkerekul), was a Romanian serial killer who was charged with poisoning 35 individuals including her two husbands, multiple lovers, and her son with arsenic during the 1920s.

According to some accounts, Renczi was born in Bucharest in 1903, but in view of the dates of her alleged crimes, a date in the late 19th century would be more appropriate. The accounts of her life are lacking in verifiable documentary supporting evidence. Her mother died when she was 13 and she moved with her father to Nagybecskerek (today Zrenjanin, Serbia) where she attended a boarding school. By the age of fifteen, she had become increasingly unmanageable and had frequently run away from home with numerous boyfriends, many of whom were significantly older than she was. Early childhood friends described Renczi as having an almost pathological desire for constant male companionship and possessing a highly jealous and suspicious nature.