Cambyses II (Old Persian: 𐎣𐎲𐎢𐎪𐎡𐎹 Kɑmboujie, (522 BCE) son of Cyrus the Great (r. 559–530 BCE), was a king of kings of the Achaemenid Empire. Cambyses's grandfather was Cambyses I, king of Anshan. Following Cyrus the Great's conquest of the Near East and Central Asia, Cambyses II further expanded the empire into Egypt during the Late Period by defeating the Egyptian pharaoh Psamtik III during the battle of Pelusium in 525 BCE. After the Egyptian campaign and the truce with Libya, Cambyses invaded the Kingdom of Kush (located in what is now the Republic of Sudan) but with little success.

When Cyrus the Great conquered Babylon in 539 BCE, Cambyses was employed in leading religious ceremonies. In the cylinder which contains Cyrus's proclamation to the Babylonians, Cambyses's name is joined to his father's in the prayers to Marduk. On a tablet dated from the first year of Cyrus, Cambyses is called king of Babylon, although his authority seems to have been ephemeral. Only in 530 BCE, when Cyrus set out on his last expedition into the East, did Cyrus associate Cambyses with the throne. Numerous Babylonian tablets of the time date from the accession and the first year of Cambyses, when Cyrus was "king of the countries" (i.e., of the world).

Cyrus II of Persia (Old Persian: Kuruš (c. 600 BC or 576 BC–530 BC), commonly known as Cyrus the Great, also known as Cyrus the Elder, was the founder of the Achaemenid Empire. Under his rule, the empire embraced all the previous civilized states of the ancient Near East, expanded vastly and eventually conquered most of Southwest Asia and much of Central Asia, parts of Europe and the Caucasus. From the Mediterranean sea and Hellespont in the west to the Indus River in the east, Cyrus the Great created the largest empire the world had yet seen. He also pronounced one of the first historically important declarations of human rights via the Cyrus Cylinder sometime between 539-530 BCE.

The reign of Cyrus the Great lasted between 29 and 31 years. Cyrus built his empire by conquering first the Median Empire, then the Lydian Empire and eventually the Neo-Babylonian Empire. Either before or after Babylon, he led an expedition into central Asia, which resulted in major campaigns that were described as having brought "into subjection every nation without exception". Cyrus did not venture into Egypt, as he himself died in battle, fighting the Massagetae along the Syr Darya in December 530 BC. He was succeeded by his son, Cambyses II, who managed to add to the empire by conquering Egypt, Nubia, and Cyrenaica during his short rule.

Prince Reza Pahlavi (Persian: رضا پهلوی‎, born 31 October 1960) is the last crown prince of the former Imperial State of Iran and current head of the House of Pahlavi. He is the older son of the late Shah of Iran, Mohammad Reza Pahlavi, and his Shahbanou Farah Pahlavi. In 1979, Reza Pahlavi left Iran at the time of the Iranian Revolution.

Reza Pahlavi was born in Tehran, Iran, as eldest son of Mohammad Reza Pahlavi, the last Shah of Iran, and Empress Farah Pahlavi. Reza Pahlavi's siblings include his sister Princess Farahnaz Pahlavi (12 March 1963), brother Prince Ali-Reza Pahlavi (28 April 1966 – 4 January 2011), and sister Princess Leila Pahlavi (27 March 1970 – 10 June 2001), as well as a half-sister, Princess Shahnaz Pahlavi (27 October 1941).

He left Iran at the age of 17 for air force training. He spent a year at Williams College, but was forced to leave because of the turmoil in Iran. With the monarchy overthrown and an Islamic Republic established, Reza Pahlavi did not return to Iran. He received a BSc degree by correspondence in political science from the University of Southern California, because Williams did not offer that option. A jet fighter pilot, Reza Pahlavi completed the United States Air Force Training Program at the former Reese Air Force Base in Lubbock, Texas. In 1980, at the start of the Iran–Iraq War, Pahlavi, a highly-trained fighter pilot, wrote to General Valiollah Fallahi, Chief Commander of the Armed Forces of the Islamic Republic, offering to fight in the air force for Iran in the war. The offer was rebuffed.