Unemployed Abduazim Sulaymanov, 39, died in hospital on Saturday morning from a stab wound he suffered in an incident on December 31.
Gardaí were called to Mr Sulaymanov’s house in the quiet Cork suburb of Ballinlough at around 9pm on New Year’s Eve.
He was taken to Cork University Hospital and was put in intensive care but died six days later.
Yesterday at 8.30am a 35-year-old mother-of-two was arrested by gardaí and taken to Cork’s Bridewell Garda Station on Cornmarket Street for questioning.
She was charged shortly after 7.30pm last night and will be brought before the District Court in Cork tomorrow morning on a charge of assault causing serious harm.
Local Fianna Fáil councillor Donal Counihan said news of the man’s death would come as a shock to local residents.
The dead man was a refugee who fled the troubled former Soviet republic of Uzbekistan, which borders Afghanistan and Kazakhstan. He had been in this country for three years.
He lived at Pinewood in Ballinlough Road and was not believed to be in employment.
Gardaí said informing Mr Sulaymanov’s family in Uzbekistan about his death would be complicated because he had been granted refugee status after fleeing the country.
State pathologist Dr Marie Cassidy carried out a post-mortem examination on Saturday afternoon and said the cause of death was a stab wound.
Gardaí yesterday declined to say how the wound was caused, how many wounds he suffered or what kind of weapon was used.
Garda Superintendent Mick Finn is leading the investigation.