Nithhogg

Level 1 of the Dungeon
[Shop] Beseck's Antique Armour Emporium
  a +0 ring mail (88 gold)
  the +1 ring mail of Melancholy {*Slow rN+++ Dex+6} (968 gold)
    It affects your dexterity (+6).
    It renders you almost immune to negative energy.
    It may slow you when you take damage.
  a +0 pair of boots (99 gold)
  a +1 ring mail of poison resistance (286 gold)
  a +0 scale mail of cold resistance (242 gold)
  a +2 buckler of reflection (407 gold)
  a +0 leather armour (44 gold)
  a +0 ring mail (88 gold)
  a +0 ring mail (88 gold)
  a +0 ring mail (88 gold)
  a +0 pair of boots (99 gold)
  a +3 scale mail of fire resistance (572 gold)
  a +0 leather armour (44 gold)
(0, 0, D:1)
  19 sling bullets
(1, -6, D:1)
  a +0 club
  2 stones
(1, -3, D:1)
  22 arrows
(8, 3, D:1)
  24 arrows
(11, 14, D:1)
  31 arrows
(11, 18, D:1)
  a +0 chain mail
(28, -1, D:1)
  24 stones
(32, 16, D:1)
  a +0 dagger
(34, 21, D:1)
  3 stones

Level 2 of the Dungeon
[Shop] Yfeirrivy's Jewellery Boutique
  a ring of flight (192 gold)
  a ring of resist corrosion (220 gold)
  a ring of flight (192 gold)
  a +6 ring of dexterity (643 gold)
  a ring of fire (275 gold)
  a ring of ice (275 gold)
  a ring of resist corrosion (220 gold)
  the ring of Zorod {rElec rN+ MP+9 Slay+2} (512 gold)
    [ring of magical power]
    
    It affects your accuracy and damage with ranged weapons and melee attacks
    (+2).
    It insulates you from electricity.
    It protects you from negative energy.
    It affects your magic capacity (+9).
  an amulet of faith (440 gold)
  a +6 ring of strength (643 gold)
  an amulet of regeneration (330 gold)
(3, 23, D:2)
  2 poisoned darts
(23, -1, D:2)
  a +0 hand axe
  a +0 ring mail
(24, 0, D:2)
  a +0 club
  a +0 leather armour
  a +0 dagger
  a +0 robe
(27, 3, D:2)
  a +0 flail
  a +0 leather armour
(31, 11, D:2)
  a +0 whip
(42, 0, D:2)
  a +0 cloak
(43, 3, D:2)
  23 arrows
(51, 13, D:2)
  a +0 dagger
(51, 14, D:2)
  a +0 dagger

Level 3 of the Dungeon
(0, 0, D:3)
  a staff of poison
(14, 30, D:3)
  21 bolts
(15, 21, D:3)
  a +0 leather armour
(21, -3, D:3)
  19 arrows
(24, -3, D:3)
  a +0 mace
(38, 2, D:3)
  23 stones

Level 4 of the Dungeon
(30, -32, D:4)
  a +0 war axe (still there?)
  a +0 leather armour (still there?)
  a +0 dagger (still there?)
  a +0 robe (still there?)
  an orc corpse (still there?)
  an orc corpse (still there?)
(30, -31, D:4)
  a +0 hand axe
  a staff of death
  an adder corpse