The articles I've created are:
WORKS OF LITERATURE
In English
Of Arthour and of Merlin
Beves of Hamtoun
"Lenten ys come with love to toune"
"Alysoun"
King Alisaunder
Richard Coer de Lyon
Robert Mannyng Handlyng Synne
"Ich am of Irlaunde"
"Maiden in the mor lay"
The Stanzaic Morte Arthur
Athelston
Coventry Mystery Plays
The Avowing of Arthur
John Lydgate Troy Book
The Floure and the Leafe
The Squire of Low Degree
Francis Bacon Essays
Thomas Dekker Old Fortunatus
John Dryden The Hind and the Panther
Thomas Gray The Bard
Oliver Goldsmith The Traveller
Henry Brooke The Fool of Quality
Thomas Warton The History of English Poetry
William Cowper The Task
Edward Gibbon Memoirs of My Life and Writings
Joseph Ritson (ed.) Ancient Engleish Metrical Romanceës
Joel Barlow The Columbiad
Samuel Taylor Coleridge Poems on Various Subjects
The notebooks of Samuel Taylor Coleridge
William Wordsworth The White Doe of Rylstone
William Wordsworth The Yarrow poems
William Wordsworth Peter Bell
Charles Lamb "The Old Familiar Faces"
The letters of Charles Lamb
Percy Bysshe Shelley Julian and Maddalo
Walter Scott "Glenfinlas"
Walter Scott Rokeby
Walter Scott, Henry Weber and Robert Jamieson Illustrations of Northern Antiquities
Walter Scott "Memoirs"
Walter Scott Letters on Demonology and Witchcraft
Walter Scott The Siege of Malta
Walter Scott Bizarro
Walter Scott The Journal
The letters of Walter Scott
Lord Byron's Memoirs
Lord Byron Marino Faliero
Lord Byron Sardanapalus
Lord Byron The Two Foscari
Lord Byron The Vision of Judgment
The letters of Lord Byron
John Barrow The Eventful History of the Mutiny and Piratical Seizure of HMS Bounty
Alfred Tennyson Poems (1842)
Thomas Babington Macaulay Critical and Historical Essays
Charles Kingsley Yeast
George Borrow Lavengro
Charlotte M. Yonge The Heir of Redclyffe
Matthew Arnold "The Scholar Gipsy"
Thomas Carlyle Critical and Miscellaneous Essays
Thomas Carlyle Reminiscences
Anthony Trollope The Three Clerks
Benjamin Disraeli Tancred
Benjamin Disraeli Lothair
William Makepeace Thackeray The Virginians
William Makepeace Thackeray The Adventures of Philip
Robert Browning Christmas-Eve and Easter-Day
Robert Browning Red Cotton Night-Cap Country
George Meredith The Ordeal of Richard Feverel
George Meredith The Adventures of Harry Richmond
George Meredith Beauchamp's Career
The letters of Charles Dickens
William Morris The Story of Sigurd the Volsung and the Fall of the Niblungs
Edward A. Freeman The History of the Norman Conquest of England
Oscar Wilde Charmides
Oscar Wilde "The Harlot's House"
Oscar Wilde The Sphinx
Samuel Butler Erewhon Revisited
H. G. Wells "The Door in the Wall"
Saki "Tobermory"
Saki The Chronicles of Clovis
James Branch Cabell Domnei. My original conception of this article was eventually split off as Domnei: A Comedy of Woman-Worship
James Branch Cabell Figures of Earth
Thomas Hardy The Famous Tragedy of the Queen of Cornwall
M. R. James "The Haunted Dolls' House"
Lord Dunsany The Curse of the Wise Woman
Robert Graves The Shout
Robert Graves Sergeant Lamb of the Ninth and Proceed, Sergeant Lamb
Robert Graves and Alan Hodge The Reader Over Your Shoulder
George Orwell Critical Essays
Osbert Sitwell Left Hand, Right Hand!
In Welsh
Pa gur
Cyfoesi Myrddin a Gwenddydd ei Chwaer
Hywel ab Owain Gwynedd "Gorhoffedd Hywel ab Owain Gwynedd"
Dafydd ap Gwilym "The Girls of Llanbadarn"
Dafydd ap Gwilym "His Shadow"
Dafydd ap Gwilym "The Magpie's Advice"
Dafydd ap Gwilym "The Mirror"
Dafydd ap Gwilym "The Poet and the Grey Friar"
Dafydd ap Gwilym "The Ruin"
Dafydd ap Gwilym "The Seagull"
Dafydd ap Gwilym "Trouble at a Tavern"
Dafydd ap Gwilym "The Wind"
Dafydd ap Gwilym "The Woodland Mass"
Dafydd ap Gwilym (attrib.) "The Dream
"Dafydd ap Gwilym (attrib.) "The Poet's Burial for Love"
Dafydd ap Gwilym (attrib.) "The Snow"
Gruffudd Gryg "The Wave"
Gruffudd Gryg "To the Yew Tree Above Dafydd ap Gwilym's Grave"
Gruffudd ab Adda "The Maypole"
Llywelyn Goch ap Meurig Hen "Lament for Lleucu Llwyd"
Iolo Goch "The Ploughman"
Iolo Goch "Owain Glyndŵr's Court"
T. Gwynn Jones Ymadawiad Arthur
John Gwilym Jones Y Goeden Eirin
Thomas Parry (ed.) The Oxford Book of Welsh Verse
In French
La Mule sans frein
Joufroi de Poitiers (translated from French Wikipedia)
Jehan de Paris (mostly translated from French Wikipedia)
François Pétis de la Croix Les Mille et un jours
Émile Souvestre Le Foyer breton (translated from French Wikipedia)
Algernon Charles Swinburne La Soeur de la reine
Arthur Rimbaud "Voyelles" (partly translated from French Wikipedia)
The letters of Gustave Flaubert
The Goncourt Journal
In Latin
Herman of Tournai De miraculis sanctae Mariae Laudunensis
Gerald of Wales Descriptio Cambriae
Vera historia de morte Arthuri
Vita Haroldi
In Breton
An Dialog etre Arzur Roe d'an Bretounet ha Guynglaff
Me zo ganet e kreiz ar mor (partly translated from French Wikipedia)
In Irish/Scottish Gaelic
Lebor Bretnach
In Anglo-Norman
Folie Tristan d'Oxford
In Cornish
Pascon agan Arluth
In Manx Gaelic
Manannan Ballad
In Norn
"Hildina"
In Scots
"Christis Kirk on the Green"
PEOPLE
Writers
Gruffudd ap Maredudd ap Dafydd
Wiliam Llŷn
Aaron Thompson (translator)
George Ellis (poet)
Evan Evans (Ieuan Glan Geirionydd)
Gabriel Milin (partly translated from French Wikipedia)
Manuel de Jesús Galván
Yann ar Floc'h (translated from French Wikipedia)
J. Glyn Davies
Alan Hodge
John Gwilym Jones
Alun Llywelyn-Williams
Michael Kennedy (music critic)
Artists
John Prudde
Master of the Jardin de vertueuse consolation (translated from French Wikipedia)
Master of the Vienna Chroniques d'Angleterre (translated from French Wikipedia)
Master of Margaret of York (translated from French Wikipedia)
Master of the Houghton Miniatures (translated from French Wikipedia)
Master of the Burgundian Prelates (mostly translated from French Wikipedia)
Michael O'Connor (artist)
Carl Almquist
Edward Holmes Jewitt
Valère Bernard (mostly translated from French Wikipedia)
Geoffrey Webb
Historical or pseudo-historical figures
Indeg
Gwenddydd
Saint Bieuzy (partly translated from French Wikipedia)
Herbot (translated from French Wikipedia)
Godwin, son of Harold Godwinson
Edmund, son of Harold Godwinson
Magnus, son of Harold Godwinson
Ulf, son of Harold Godwinson
Harold, son of Harold Godwinson
Thurstan of Caen
Composers
Anthony de Countie (translated from French Wikipedia)
David Vaughan Thomas
Anatoly Bogatyrev
Others
Thomas Poole (tanner)
Henry Monson (gaoler)
Henri Gillard
MUSIC
Classical
William Byrd Mass for Five Voices
Henry Purcell "Rejoice in the Lord alway"
Henry Purcell "Fairest Isle"
Leoš Janáček Idyll for Strings
Leoš Janáček Our Father
Gustav Holst "This Have I Done for My True Love"
Gustav Holst The Hymn of Jesus
Gustav Holst A Fugal Overture
Gustav Holst A Fugal Concerto
Gustav Holst Terzetto for flute, oboe and viola
Gustav Holst Double Concerto
Gustav Holst Lyric Movement
Ralph Vaughan Williams Five Tudor Portraits
Yuri Shaporin The Decembrists
Malcolm Arnold Peterloo
Folk
"Ar rannoù" (translated from French Wikipedia)
"Marv Pontkalleg" (partly translated from French Wikipedia)
MANUSCRIPTS
Psalter of St Germain (translated from French Wikipedia)
Psalter of Charles the Bald (translated from French Wikipedia)
Cartulary of Mont-Saint-Michel (translated from French Wikipedia)
Douce Apocalypse (partly translated from French Wikipedia)
Pearl Manuscript
Egerton Hours (translated from French Wikipedia
BNF fr. 113–116 (translated from French Wikipedia)
Richard Hill's Commonplace Book
LEGEND AND FOLKLORE
Air ship of Clonmacnoise
Esplumoir Merlin (translated from French Wikipedia)
Groac'h (translated from French Wikipedia)
Morvarc'h (translated from French Wikipedia)
Pridwen
Prydwen
HISTORY
House of Godwin
English embassy to Rome (1061)
Northumbrian Revolt of 1065
Council of Winchester (1070)
Danish attacks on Norman England
FICTIONAL CHARACTERS
Lord Glenallan
Saunders Mucklebackit
Edie Ochiltree
Sir Arthur Wardour
BUILDINGS
Allan Bank
Église Sainte-Onenne (partly translated from French Wikipedia)
St Giles' Church, Shermanbury
St Peter's Church, Henfield
ANTIQUITIES
Heysham hogback
Hotié de Viviane (translated from French Wikipedia)
Tombeau de Merlin (translated from French Wikipedia)
LISTS
List of works by Carl Almquist
List of works by Edward Holmes Jewitt
List of works by Geoffrey Webb
NURSERY RHYMES
Joseph Ritson Gammer Gurton's Garland
"Arthur o' Bower"
TOPOGRAPHY
Crook o' Lune
Stock Ghyll