Daedric J-M

Jyggalag
Jyggalag is the Prince of Order, but his sphere and other characteristics were not revealed during the early Elder Scrolls games. Jyggalag commands his own Daedra, the "Knights of Order," which are spawned from mysterious obelisks activated by his followers, the Priests of Order. Jyggalag and his minions are depicted as grey crystalline knights. He represents logical order and deduction, and is said to "never have had an original idea in his life."

Shivering Isles reveals that Jyggalag is in fact Sheogorath himself. Jyggalag had grown in power and influence, and the other Daedric princes had grown fearful of him. They cursed him to live as Sheogorath, the incarnation of the thing he hated most — Madness. However, the other Daedric Princes wanted to make sure that Jyggalag suffered more, so he is allowed to return to his true form at the end of every era in order to retake his lands from his mad self, an event known as the "Greymarch."

However, once this was done, the curse would transform him back into Sheogorath, starting the cycle over again, something that Jyggalag knew would happen every time he was finished.

Malacath
Malacath is the Daedric prince whose sphere is the patronage of the spurned and ostracized, the keeper of the Sworn Oath, and the Bloody Curse.

He was created when Boethiah ate the Aedra Trinimac, causing the Orsimer ("Pariah Folk" in Elvish), or Orcs, to be created, as they were Trinimac's devout followers. Malacath is not recognized as a Daedric Prince by his peers, which fits his sphere perfectly. He is worshiped by orcs and is considered to be one of the few good daedra. Malacath is also called Malauch by Orcs and Orkey or the Old Knocker by Nords, who blame him for stealing mankind's long lifespans. Malacath spurns physical weakness; hence, the above-average strength of the creatures associated with him.

The Ashpit is Malacath's realm and is known as the hardest of the realms for mortals to reach of the ones that are accessible at all. The Ashpit is described as consisting only of dust, palaces of smoke, and vaporous creatures.

Mehrunes Dagon
Shrine of Mehrunes Dagon in Skyrim. Mehrunes Dagon is the Daedric Prince of Destruction, Change, Revolution, Energy, and Ambition. He is associated with natural dangers like fire, earthquakes, and floods. He is an especially important deity in Morrowind, where he represents its near-inhospitable terrain.[16] In most cultures, however, Dagon is merely a god of bloodshed and betrayal. Dagon's plane of Oblivion is known as "The Deadlands".

Of all the Daedric Princes, Mehrunes Dagon seems to have the most animosity towards Nirn's species. Given his nature (Prince of Destruction), along with the fact that Daedra truly cannot be destroyed, the only entities he can practice destruction on are mortals. He assisted Jagar Tharn in his temporary usurpation of the Imperial throne. He invaded and seized control of the Battlespire in violation of the Daedric pact for preventing unchecked meddling in mortal affairs by divine beings (the purpose of this being to cripple the capacity of the Imperial College of Battlemages, which presented a threat to Tharn's power as Emperor),

Mehrunes Dagon was also responsible for the destruction of Mournhold at the end of the First Era and apparently also destroyed Ald Sotha, home of House Sotha and Sotha Sil's birthplace.

Mephala
Mephala is a Daedric Prince whose sphere is obscured to mortals, also known by the names Webspinner, Spinner, Spider, and the Anticipation of Vivec. The only consistent themes seem to be interference in the affairs of mortals for her amusement, and spiders. She also directly helped to found the infamous cult/society of the Morag Tong.

Her sphere seems to indicate a careful plan carried out through executions, each life a portion of a massive web. Mephala sees the affairs of mortals as a weave; pull but one thread and the entire web unravels.

Meridia
Meridia, frequently considered the kindest of the Daedra, is viewed as an obscure Daedric Prince to mortals, for very little is known about her or her sphere. What is known is that she is associated with the energies of living things, and bears a special hatred for the undead. Her realm is known as the Colored Rooms.

Molag Bal
Molag Bal is the Daedric Prince whose sphere is the domination and enslavement of mortals. His only desire is to harvest the souls of mortals and to bring mortals' souls within his sway by spreading seeds of strife and discord in the mortal realms. As mentioned above, this is not inherently evil, although its effects are generally negative. His realm is called "Coldharbour," a twisted dark version of Tamriel.

Molag Bal is said to be the father (along with Vivec, whom he seduced) of a population of mutant degenerates living in the region of Morrowind bearing his name, who may have been the first eventual vampires, a corruption of Vivec's ties to the Heart of Lorkhan transmitted to mortals. However, some other cultures disagree with that theory, claiming the creation of vampires to be in Skyrim.

Molag Bal, in a rage against Arkay, the god of life and death, set out to disrupt the cycle. He ravaged a Nedic virgin named Lamae Beolfag in Skyrim, and her screams became the winds.[8] He pricked his finger and left a drop of his corrupting blood on the center of her forehead. She awoke as the mother of vampires as she was burning on a funeral pyre. She slaughtered the funeral procession, and her "unholy" progeny spread to every corner of Tamriel, much to the despair of Arkay, incapacitated by the creation of Nirn.[8]

In Morrowind, Molag Bal is known as one of the "Four Pillars of the House of Troubles," known in Morrowind as the "Bad Daedra." Molag Bal has a shrine in Skyrim in Markarth.