Other sections of this man's best known poem- which depicts the courtship of the poet's wife, Sybil, and the death of his daughter, Hazel- are accompanied by a large commentary, which makes constant references to the land of Zembla and was written by Charles Kinbote.  
One poem by this author notes "The ginkgo leaf, in golden hue, when shed/A muscat grape/Is an old fashioned butterfly, ill spread/In shape."  Another poem by this man states "The mountain is too weak to wait/Even if reproduced and glassed/In me in a paperweight. * In addition to writing "The Sacred Tree" and "Mountain View," he is responsible for a longer poem that includes such lines as "There was one misprint-not that it matters much/Mountain not fountain. The majestic touch."  Other sections of this man's best known poem- which depicts the courtship of the poet's wife, Sybil, and the death of his daughter, Hazel- are accompanied by a large commentary, which makes constant references to the land of Zembla and was written by Charles Kinbote.  For 10 points, name this fictional author of the work "Pale Fire," a character from the novel of the same name by Vladimir Nabokov.
One poem by this author notes "The ginkgo leaf, in golden hue, when shed/A muscat grape/Is an old fashioned butterfly, ill spread/In shape."  
John Shade [prompt on Nabokov before *]