It is the last installment in Lagerlöf 's Ring trilogy ; it was preceded by " The Löwensköld Ring " and " Charlotte Löwensköld " .
Head entity: charlotte löwensköld Q166334 22 23
Tail entity: the löwensköld ring Q1196516 16 17 18
Relation (head \u2192 tail): P156
Inverse relation (tail \u2192 head): P155