Vilnius' Black Madonna features in the novel. There are around black Madonnas in Europe; that housed in the Dawn Gates at the edge of Vilnius' Old Town is reputed to have miraculous powers and is a popular pilgrimage destination.
The Fingerlooping technique is of considerable interestt! The Madonna appears to be knitting a sock in this altarpiece painted by Nicolás and Martín Zahortiga, c. 1460 for the Museo de la Colegiata de Borja in Spain. knitter knitting in art