Shannon Ruddock had seen a good death: Her 54-year-old mother had died from breast cancer at Kogarah's Calvary Hospital surrounded by family and treated by palliative care experts who knew about death, dying and pain relief.

Eleven years later when her father Vincent Paranthoiene, 81, was diagnosed with terminal cancer – causing pain so bad he begged to be thrown under a bus – she hoped he would receive the same care, the Royal Commission on Aged Care Quality and Safety heard on Thursday.

But the time he spent at Alkira Gardens aged care facility in Miranda as a palliative care patient after he was discharged from hospital were marked by untreated pain, Ms Ruddock detailed in 90 minutes of evidence.

Shannon Ruddock's father's pain was neglected in a nursing home in Sydney's south. Credit:Royal Commission webcast

Her father was neglected because there were not enough staff at Alkira to care for residents with complex needs like his, she said.