How was king Cyrus related to queen Esther?

A:Cyrus the Great (c. 560-530 BCE) was the first king of the Persian Empire, which eventually spanned the entire Near East, including Egypt. He was succeeded by his son, Cambysis. Bardia (Smerdis), whose identity is uncertain, usurped the throne and was subsequently overthrown by Darius I, an unrelated general in the Persian army. The Book of Esther says that Esther married Xerxes I (486-465 BCE), the son of Darius. Thus, Esther had no claim to be related to Cyrus, even by marriage.

Moreover, historians say that there is no evidence that there ever was a Persian queen called Esther, nor even Vashti. Queen Amestris is accepted by historians as Xerxes' only wife for the first several years of his reign, and scholars consider the Book of Esther to have been written as an early Jewish novel. On this basis, there is no possible relationship between Cyrus and Esther.