Loid's Mother

Loid Forger's mother cared deeply for him.

[Spoiler] Following the attack on Luwen during the Second East-West War of Unification, she and Loid left to stay with her uncle in Kielberg. Loid's mother later died in Kielberg during an air raid, and it is implied that Loid found her body when he tried to look for her. [/Spoiler]

When Yor sings a lullaby to Loid, he is reminded of his mother, who sang the same lullaby to him.

(Source: Spy x Family Wiki, edited)