Why do some spell name Cortes vs cortez?

The name "Cortes" is often used to refer to Hernán Cortés, the Spanish conquistador known for his role in the fall of the Aztec Empire. "Cortez" is a common alternative spelling that may arise from English phonetic adaptations or personal preferences. Additionally, some individuals or families may choose one spelling over the other for cultural or genealogical reasons. Ultimately, both spellings refer to the same historical figure or his descendants.