The 20-year-old woman killed in the house fire in Prestatyn has been named as Lee-Anna Shiers.
Ms Shiers 15-month-old son remains in a critical condition at Alder Hey Children's Hospital in Liverpool, while her partner, 23, is in a "serious" condition at Whiston Hospital, Merseyside.
A special memorial service has been held in Prestatyn to celebrate the lives of five people who were killed in a house fire last month.
Funerals will be held for the five people who died as a result of a flat fire in Prestatyn last month.
Two people arrested following a fire in Prestatyn in which four died have been released from police custody.