Anne O'Sullivan (60) was left traumatised in the early hours of Monday, October 26 when her eldest son, Mark (25), was shot dead in his bedroom following an apparent confrontation with his father Tadg (59) and his younger brother, Diarmuid (23), in a tragic inheritance dispute.
The mother-of-two, who has been battling ill-health for some time, has been staying with relatives since the shocking events of last week.
Sources say it's unlikely that she will ever go back to the family homestead.
The widow, who one source said received scratches to her hands as she frantically tried to flee the scene, is in the care of a cousin who is a nurse.
Mrs O'Sullivan attended the funerals of her husband and two sons at the weekend and arrangements are now being put in place to continue her care away from her former home.
Her eldest son Mark, a trainee solicitor, was shot and killed following a confrontation with his father and younger brother, which was sparked by an inheritance row over a €2m farm.
A family feud over the 115-acre farm dramatically escalated when details of a proposed will became known just over two weeks ago.
After Mark's shooting, Tadg and Diarmuid went to a field some 600 metres from the Assolas farmhouse and took their own lives.
Two .22 calibre rifles were found by their sides.
Tadg and Diarmuid deliberately did not target Anne and left a detailed personal note, found beside Diarmuid's body, which was marked for her attention.
They were buried together following requiem mass last Friday at St Mary's Church in Castlemagner.
A separate funeral was held for Mark last Saturday in Kanturk. He was later buried in a plot belonging to his mother's family.
The mourners were led by Mrs O'Sullivan, a highly respected nurse who comes from a family of landowners.