Why were they called maria and Bruno in The Boy in the Striped Pajamas?

In "The Boy in the Striped Pajamas," Maria and Bruno are characters that represent different aspects of innocence and loyalty. Maria, the family’s maid, embodies compassion and care, while Bruno, the young protagonist, symbolizes curiOSity and friendship. Their names serve to humanize the story, emphasizing the personal connections and moral dilemmas faced during a time of great tragedy. Ultimately, their interactions highlight the stark contrasts between innocence and the harsh realities of the world around them.