Frankenstein is best known as the creator, Victor Frankenstein, from Mary Shelley’s novel Frankenstein; or, the Modern Prometheus (1818). In the story, Victor is a young scientist who assembles a sapient being from dead body parts and brings it to life, a creation that ultimately becomes his undoing. Key points to answer your question:

• Creator: Victor Frankenstein, an ambitious scientist who studies chemistry and the life sciences at the University of Ingolstadt.
• The creature: Often referred to as Frankenstein’s monster, or colloquially just “Frankenstein,” though the creature itself has no name in Shelley's novel. The monster is intelligent and capable of emotion, but is rejected by society and its creator.
• Relationship: The plot centers on the doomed relationship between Victor and his creation, highlighting themes of ambition, responsibility, and the consequences of playing God.
• Cultural depictions: In popular culture, the name “Frankenstein” is commonly used to refer to the creature, and “Dr. Frankenstein” or “Victor Frankenstein” is used for the scientist, though the original novel identifies him as Victor Frankenstein and does not depict him as a licensed medical doctor.

If you’d like, I can tailor this to a specific version (Victoria Shelley’s 1818 original, the 1831 revised edition, or a particular film adaptation) or provide a concise summary of the novel’s plot and major themes.