Hermaeus Mora
Hermaeus Mora is the Daedric Prince whose sphere is the scrying of the tides of Fate, of the past and future as read in the stars and heavens, and in whose dominion are the treasures of knowledge and memory. His name is also spelled Hoermius Mora, Hormaius Mora, or Herma-Mora. Also called the "Prince of Fate", "Lord of Secrets", and "Demon of Knowledge", he is vaguely related to the cult origins of the Morag Tong if only by association with his sibling, Mephala. Unlike most Princes, Hermaeus Mora does not take on a humanoid form at all, living instead as a grotesque green mass of tentacles and claws or a purple and black vortex known as the Wretched Abyss. His servants include Seekers and Lurkers.
Apocrypha is Hermaeus Mora's plane of Oblivion, an endless library where all forbidden knowledge can be found. The books all have black covers with no titles, and the library is haunted by ghosts forever searching for knowledge.
For more information, see the article on Hermaeus Mora.
Hircine is the Daedric Prince whose sphere is the Hunt, the Sport of Daedra, the Great Game, the Chase, and is known as the Huntsman and the Father of Manbeasts. Hircine created the various therianthropic diseases which transform mortals into beasts, and is therefore the guardian of were-creatures. They reflect his sphere admirably, hunting at night and being hunted by day. Hircine's existence appears to have been discovered later than other Daedric Princes, as he doesn't appear in the most ancient records and summonings of him were rare or non-existent. Hircine is a sportsman who enjoys giving his prey a chance for victory, however small. He is typically portrayed with a great spear and either the head or skull of a deer. For more information, see the article on Hircine.
 HoonDing, the Yokudan Make Way God
Yokudan spirit of 'perseverance over infidels'. The HoonDing has historically materialized whenever the Redguards needed to 'make way' for their people. In Tamrielic history this has only happened three times: twice in the First Era during the Ra Gada invasion in the form of Hunding and Diagna, and once more during the Tiber Wars. In this last incarnation, the HoonDing was said to have been "either a sword or a crown, or both" implying that HoonDing was either the young Redguard Crown Cyrus, or the sword enchanted with the soul of the last heir to the throne of Hammerfell prince A'Tor, or, of course, both of them together.
 House of Troubles
House of Troubles (also known as the Bad Daedra) is the Dunmer (and before that Velothi) term for four of the Daedra Lords: Mehrunes Dagon, Sheogorath, Malacath and Molag Bal. These princes are the Bad Daedra as introduced to the Chimer by the teachings of Saint Veloth. Rebels whose purpose it is to test the resolve and faith of mortals, they are also known as the Four Corners of the House of Troubles. Ancient, alien temples dedicated to their worship can be found across Vvardenfell, paradoxically sharing structures dedicated to Azura, one of the Good Daedra.