Magnus is the father, the Serpent the mother, and Dagon the midwife. "For as Mehrunes threw down Lyg and cracked his face, declaring each of the nineteen and nine and nine oceans Free, so shall he crack the serpent crown of the Cyrodiils and make federation!" And it came to pass.

Lyg is Shor, right?

I find it more than odd that this name shares similarities with Jyggalag, but then again it wouldn't be the only misleading phonetic similarity in TES. For instance one would assume Orkey is Arkay but apparently he's Malacath?

Orkey is Arkay, and it's Mauloch that's Malacath. A huge hint that Orkey is Arkay is that he is known as "The Loan God" and controls how people age. It even says Mauloch is Malacath in all sources explaining Mauloch.

I must have gotten that confused somehow.

But you didn't answer my question. Lyg is Shor, right?

:shrug:, I dunno

I found two results when I searched for Lyg at TIL.

Mythic Dawn Commentaries, Book Four:

"Deny not that these days shall come again, my novitiates! For as Mehrunes threw down Lyg and cracked his face, declaring each of the nineteen and nine and nine oceans Free, so shall he crack the serpent crown of the Cyrodiils and make federation!"


and

Fight Three, "The Snow Whale and the Dirtbird

"The bull eyed the Prince, and gave a bow as the older cows taught him, and started to say, "Mighty Lion of Evening, Vulgar and Low, Keeper of Coldharbour since the fall of Lyg, Destroyer of the Hearts of Men, I have come to--" but he was interrupted by the chirping and relentless admonishment of his stowaway, who had left his tail and flown directly into the Prince’s face."


So all we have to go on is that Lyg was someone powerful - presumably an Et'Ada who was defeated by Mehrunes Dagon (maybe) and after whose death, Molag Bal began to rule Coldharbour (possibly).

The only notable Greater Spirit we know of who is "dead" is Lorkhan. So it makes sense to me they are one in the same.

That's the point of fantasy. Most people waste it and try to explain away everything interesting and fantastical by binding it to real-world rules that do not exists in these worlds. But in Fantasy, the sun and stars can literally be holes in the sky, which is in fact a gigantic ocean-like void that revolves around a central planet, which is often the focus of gods who are themselves and yet also other beings, like Akatosh can be Alduin can be Shor, but those three can be different people, who are objectively real, but can meet each other and, in some cases, murder and deceive one another, or how Jyggalag can command his Knights of order even when Sheogorath is dominant, and if the CoC mantled the Madgod truly then they can be two people as well. or three, if he also mantled Pelinal who mantled Shor.

Another example from the central plot of Morrowind is that the nerevarine is him or herself, but he/she is also Nerevar.