What grape variety is known as “the heartbreak grape”?

B.

Pinot noir earned this nickname because, even though it is one of the most fickle grapes to grow, it can become what many consider to be the most poetic, compelling wine in the world.  In fact, an entire book on pinot noir by the author, Marq de Villiers, is entitled The Heartbreak Grape (McArthur & Company 2007).