give a collection of words/phrases describing a throne room fixture that has been in disrepair for about 100 years

Here's a brain-dump, grouped so you can pick by fixture type and mood.

The throne itself

• Tarnished, verdigris-coated, blackened with age, gilt peeling to bare iron
• Splintered, cracked, listing to one side, listing like a drunkard
• Cushion rotted to a husk, bolster gone to dust, velvet worn to threads
• Footstool with a lion's paw snapped clean off
• Heraldic crest above the seat — broken, missing a quarter, fallen and propped against the back
• A skeleton still upright in the seat (or slumped, or one hand still on the arm)

Banners, tapestries, heraldry

• Moth-eaten, riddled with holes, hanging in tatters
• Faded beyond reading, colors leached to the tone of old bone
• Edges brown and brittle, crisp enough to crumble at a touch
• Standards collapsed on their poles, pooling on the floor
• A still-legible motto beside a crest you can no longer trace

Lighting — chandeliers, braziers, sconces

• Sconces unlit so long the wax has fused to the wall
• Chandeliers hanging at a slant, a third of their candles rotted away
• Braziers full of cold ash, a skin of ash over cold ash
• Lanterns with panes clouded opaque, doors hanging open on one hinge

Metal and hardware in general

• Rusted to the wall, fused at the joint, pitted beyond polishing
• Lock long since corroded shut (or wide open, key long gone)
• Hinges seized, hinges screaming if forced
• Nails protruding from rotted wood

Stone, columns, floor

• Tiles heaved and cracked, mosaics missing pieces
• Mortar dust on the floor like dirty snow
• Stalactites of grime from the ceiling
• Stain rings on the dais where bowls of fruit once stood

Textiles — carpets, runners, canopies

• Baldachin sagging, fringe trailing on the floor, one post snapped
• Carpet runner worn to a threadbare stripe by feet long since dust
• Canopy fabric draped like dead skin

Ambient / sensory phrases (good for the first paragraph)

• The dust of a hundred unvisited coronations
• Cobwebs thick as bunting, sagging from every rafter
• A smell of cold iron and old velvet
• Motes turning slow in the one shaft of light that finds the room
• Silence so settled it has weight
• Last sat upon by a king no chronicler bothered to name
• The throne's red was once the red of a beating heart; now it is the red of dried blood
• The room holds its breath, expecting the next sitter

One-line opener ideas

• The throne had not borne a sitter in so long that the dust on its arms kept its own shape.
• A century of stillness had given the room a kind of grandeur again — ruin's own dignity.
• Everything noble in the room had been eaten down to its skeleton: gilt to iron, silk to thread, bread to crumb.

If you tell me the genre and tone (grimdark fairy tale? cozy-but-haunted? gothic horror?), I can sharpen the list further — disrepair is wildly different in a Beardsworth illustration than in a Mervyn Peake scene.