The title "King of Bulgaria" refers to the monarch who ruled the Kingdom of Bulgaria from its establishment in 1908 until the abolition of the monarchy in 1946. The most notable kings include Ferdinand I, who reigned from 1887 to 1918, and his son Boris III, who ruled from 1918 until his death in 1943. The monarchy played a significant role in Bulgaria's political and cultural development during the early 20th century. After World War II, Bulgaria became a communist state, leading to the exile of the royal family. The last reigning monarch, Simeon II, was only a child when he was deposed. Today, the legacy of the monarchy is a topic of interest in Bulgarian history, with discussions about its impact on national identity and governance.