Detailed Instructions: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Q: Passage: In post-World War II Italy, Malvina is on her deathbed at her ancestral home. She tells Jakob, her adolescent son, that another woman will come, a woman who will love him, and that the next words he speaks will call Malvina back to him.
Seven months later a British nurse specializing in children's care, Verena, arrives. Jakob hasn't spoken since his mother died and Verena is the latest English-speaking (per Malvina's wishes) nurse recruited by Klaus, Jakob's father. Verena meets estate keeper Alessio and retired house maid Lilia. Though polite, Jakob is cold and distant.
Verena learns that Malvina's family owned the estate and surrounding quarries for 1,200 years. Malvina was the first descendant not to run the quarry, instead becoming a world famous pianist. Since most of the men who worked there died during the second world war, she allowed the quarry to flood, though Alessio still lights a flame for long-dead quarrymen, proclaiming "Life. Death. Love. The stone was everything." 
When Verena looks in on Jakob one night, she finds him with his ear to the stone wall in his room, listening. Klaus fears that Jakob believes he can hear Malvina in the stone. Verena worries that she is inadequate and that Jakob's condition requires a mental health specialist.
When Verena sees Jakob on the ledge of a tall tower, she endangers herself to rescue him – making her (and Jakob) realize that she cares for him and must stay to help him.  She caringly explains that the voice he hears is real, but that it is just his mind playing tricks on him. The next day Verena sees him listening to Malvina's tombstone in the family mausoleum. Alessio informs her that 40 generations are buried there "in the stone". Verena, who was orphaned around Jakob's age, tells the boy that she already knows that wishing to hear dead loved ones does not make it happen.
A:
What is the name of Jakob's mother?