A few case reports on the delusion of pregnancy can be found in the pu
blished literature. However, the delusion of maternity, a delusional c
onviction of the patient that she is a mother of one or more children,
has not yet been studied closely. The author describes the case of a
62-year-old childless patient with a diagnosis of chronic paranoid sch
izophrenia. She developed a delusion of maternity? persistent for many
years. This markedly influenced her behaviour.