Sanctum of Chaos

Large Titanite Shard 3 - In the underpass coming from centipede

Solaire Summon Sign - past the underpass and around the far side of the bottom of the stairs

Soul of a Rusted Knight + Repair Powder - Above the underpass

Soul of an Exiled Witch - Drop down to a branch from above the underpass

Kirk invasion - 13,000 souls - chest by Bed that requires Melted Iron Key but has nothing in it

Dragon Scale - Down in the poison pit on the upper level

Prism Stone - With the funnel monsters in the Jeremiah/Siegmeyer pit

Scintilla Rune + Soul of a Blind Wizard - Where the old slab was in the pit guarded by a Capra Demon

Soul of a Doomed Thief - By the stairs back up from the pit

Ensouled Titanite - In a chest by the funnel monster on the way back up from the pit

Jeremiah - 40,000 souls + Crown of Gold + Soul of Jeremiah + Humanity (Wicked Jeremiah has been punished)

Bed of Chaos - 60,000 souls + Life Soul + Humanity + Homeward Bone

Confirmed Drops

Spider Arm Hollow - Large Titanite Shard

Funnel Monster - Red Titanite Chunk

Titanite Demon - Repeatable Ensouled Titanite

Maggot - Sunlight Maggot

Sunlight Maggots
 * At the exit towards centipede
 * Just after the underapss on the right
 * Above the underpass
 * Below the root connecting the bonfire area to Bed
 * By the Titanite Demon near the bonfire
 * Around the corner right next to the bonfire