* The name "Tudor" itself is of Welsh origin, but it's not a common word used in modern Welsh.
* The Welsh form of the name is "Tudur", which was the name of the founder of the Tudor dynasty.
However, when referring to the Tudor period in history, you would use the Welsh translation of "period":
* Cyfnod y Tudors - This translates directly to "Tudor Period".
So, depending on the context, you could use "Tudur" for the name or "Cyfnod y Tudors" to refer to the Tudor period.