A woman (50s) who was receiving medical treatment in Portiuncula University Hospital passed away from her injuries on Thursday after she was seriously assaulted on Monday.
Gardaí attended a home in Ballinasloe, Co Galway, on Monday at around 7pm, where they found a woman who had been seriously injured.
A male (50s) appeared before Ballinasloe District Court yesterday and investigations are ongoing.
Following the woman's death, the local coroner has been notified and a post mortem examination will take place in due course.
Investigating gardaí are appealing to anyone who may have any information on this incident to come forward.
Anyone with information is asked to contact Ballinasloe Garda Station at 090 963 1890, the Garda Confidential Line at 1800 666 111, or any Garda Station.