Definition of "splendor"

What tho’ the moon—the white moonShed all the splendour of her noon,Her smile is chilly—and her beam,In that time of dreariness, will seem(So like you gather in your breath)A portrait taken after death.

1829, Edgar Allan Poe, “Tamerlane”, in Al Aaraaf, Tamerlane and Minor Poems

Once upon a time on an uninhabited island on the shores of the Red Sea, there lived a Parsee from whose hat the rays of the sun were reflected in more-than-oriental-splendour.

1902, Rudyard Kipling, “How the Rhinoceros got its skin”, in Just So Stories

The original family who had begun to build a palace to rival Nonesuch had died out before they had put up little more than the gateway, so that the actual structure which had come down to posterity retained the secret magic of a promise rather than the overpowering splendour of a great architectural achievement.

1963, Margery Allingham, chapter 1, in The China Governess‎