Get a substring from a qutoed string using C# regex

Question

Hi
I have a string "\"David\"". I want to read David using C# Regex. What I have done is here:

string strNamePattern = @"^[a-zA-Z][a-zA-Z0-9\ '-]*$";
Regex re = new Regex(strNamePattern);
Match match = re.Match(strLastName);

but match.Success does not return true, so I could not get match.Value. I want that if Lastname contains any single or double quotes at starting and ending position, then it must read the substring within that double or single quote