It’s a purely Australian view, but this article did more than enough to make me smile:

When I asked him why he’d changed the name of his Richmond Grove blend of chardonnay and semillon from Richmond Grove Pinot Riesling to Richmond Grove Semillon Chardonnay, he clarified the issue thus: “Pinot riesling doesn’t mean very much at all. Chardonnay’s not pinot chardonnay and I don’t think riesling in the context of pinot riesling means very much. I mean riesling is semillon and pinot is chardonnay, and we have more semillon in the wine than chardonnay, so it should be semillon chardonnay.”