He had this line in his book that supposedly comes from the Habsburg Monarchy, where there was an empress Maria Theresa, who was having trouble conceiving.
Viņa grāmatā bija tāda rindiņa, kas, iespējams,  nāk no Hābsburgu dinastijas. Tur bijusi imperatore Marija Terēza kurai bija grutības ieņemt bērnu.