When an established personal author changes his  or  her  name, e.g.,  by  marriage, the previously valid AACR2 heading becomes a  ref coded  $wnne.  The coding is seldom seen in other circumstances, but can occur (especially with British place-names).

What happens if  a heading with  a  ref coded  $wnne changes again? Can a record have more than one ref coded  $wnne?

CPSO says that  a record may contain as many  $wnnes  as appropriate, depending on  how  many  times  the  heading has changed.