Count Dooku’s iconic curved lightsaber hilt is coincidentally similar to the curved hilt sabre of historic king and emperor Charlemagne, of whom Christopher Lee (who portrayed Count Dooku/Darth Tyranus) was a direct descendant.
what
Apparently this was because Count Dooku was considered and extremely masterful duelist and his lightsaber represented this. He was a powerful fighter that trained General Grievous. I only just learned about this.