Here's why and some options:
* Sound: The closest sound in French would be "Édouard" (pronounced "ay-dwar").
* Formal: In formal settings, you'd likely see the name spelled as "Édouard" or "Edouard" (without the accent).
* Informal: You might find variations like "Ed" or "Eddy" used in informal settings, just like in English.
It's important to note that the French spelling is ultimately about pronunciation. There's no single correct way to spell it, but these options reflect the most common and accurate ways to represent the English name "Edward" in French.