Which King abdicated the throne in 1936?

In 1936, Edward VIII famously abdicated the throne, making this answer correct. His decision was primarily driven by his desire to marry Wallis Simpson, an American divorcée, which was considered unacceptable for a reigning monarch at the time. The abdication created a constitutional crisis in the United Kingdom, leading to his brother George VI ascending the throne. Edward VIII's abdication is a significant moment in British history, as it was the first voluntary abdication of a monarch in British history and had a lasting impact on the royal family and the country's monarchy.

Understanding this context helps clarify why Edward VIII is remembered for this particular decision during his short reign.