I wrote the esteemed Conrad as follows: “I thought ‘Non sum qualis eram bonae sub regno Cynarae‘ was a long title until I was flipping through my 1919 Poems and Prose of Ernest Dowson and saw ‘O Mors! quam amara est memoria tua homini pacem habenti in substantiis suis.’” As I hoped, he had a topper:
Fair, but these moderns have nothing on the 17c. My favourite is John Taylor’s charming poem entitled ‘The essence, quintessence, insence, innocence, lye-sence, & magnifisence of nonsence upon sence: or, Sence upon nonsence. The third part, the fourth impression, the fifth edition, the sixth addition, upon condition, that (by tradition) the reader may laugh if he list. In longitude, latitude, crassitude, magnitude, and amplitude, lengthened, widened, enlarged, augmented, encreased, made wider and sider, by the addition of letters, syllables, words, lines, and farfetch’d sentences. And the lamentable death and buriall of a Scottish Gallaway nagge. Written upon white paper, in a brown study, betwixt Lammas day and Cambridge, in the yeare aforesayd. Beginning at the latter end, and written by John Taylor at the sign of the poor Poets Head, in Phoenix Alley, near the middle of Long Acre, or Coven Garden. Anno, millimo, quillimo, trillimo, daffadillimo, pulcher’.
Of course, it looks much better in its proper layout, which you can see here; you can then proceed, if you like, to read the poem itself. (The odd form at the start of the first line, “MOūt meekly low, on blew presumptuous wings,” is an abbreviated form of “Mount”; the poem is dated 1653.)