Background and objectives: A rise in prolonged grief disorder (PGD) levels was expected due to COVID-19 deaths. We tested this assumption, by comparing PGD-severity among people who experienced a death of a loved one during the pandemic caused by a natural (e.g., illness), COVID-19, or unnatural (e.g., accidents, suicides, homicides) loss on average 8 months earlier and in a subgroup of people bereaved ≥12 months earlier.