Its Warren Gatland
The Rugbys was created in 1965.
Warren Gatland
Enw. That is how you say name in Welsh.
It doesn't appear to be a Welsh name and would not have a Welsh version.
Freddy Welsh's birth name is Fred A. Welsh.
Mikey Welsh's birth name is Michael Welsh.
Ronnie Welsh's birth name is Walter Ronald Welsh.
Susan Welsh's birth name is Welsh, Susan E..
The Welsh word for "Welsh" is Cymraeg :)
fair play and enjoyment and partisipation
If you're talking about the die-hard fans of rugby, the first one "Rugby's Die-Hard Fans" is correct. The apostrophe after the "y" in Rugby makes it possessive, indicating the die-hard fans are fans of rugby. Rugbys would be plural, but the word makes no sense: you can't have multiple rugbys, since it's a sport, and not an object to be duplicated. You can have multiple rugby games, for example, or multiple rugby balls, but not "rugbys."
Samantha is not a Welsh name; it is of Aramaic origin, and it means "Listener"