King Tupou IV was the king of Tonga from 1965 until his death in 2006. He was born on July 4, 1928, and became the monarch after the death of his father, King Taufa'ahau Tupou III. His reign was marked by significant changes in Tongan society, including modernization efforts and increased political participation. During his time as king, Tupou IV faced various challenges, including economic difficulties and political unrest. He was known for his efforts to improve the welfare of his people, but his later years were marred by criticism regarding his leadership and governance.