I was wondering. If martin had ever encountered a dragon, would he have devoured his soul? Or any of the septims besides Tiber septim?

I don't believe he was dragonborne, but just had dragon blood running through him due to his heritage which allowed him to wear the amulet.

Septims in Oblivion were Dragonblood, Skyrim is Dragonborn.

I don't know. The rest of the Septims, no (with the possible exception of Tiber), but Martin, with his deeper connections to Akatosh and important destiny connected to said deity (trying to avoid too many spoilery details for Oblivion, that's the best I can put it )? Possibly. Yes, that destiny is of a somewhat different sort from the Dragonborn in Skyrim, but it is there... so I'm going to play advocatus Diaboli a bit and say that yes, he could have if he'd been around when the dragons awoke.

It's the same thing.
- http://imperial-library.info/content/book-dragonborn

If Martin had killed a dragon, then yes, I don't see why he wouldn't absorb its soul.

Ah, but would a dragon even be hostile to Martin of-the-blood?

I dare say that he would not. The drake would swoop down to Nirna, kowtow on his pinions and breathe only his praises to the Lord of Ruby Hosts.

Something quacky happened; upon smashing the Amulet, Martin absorbed every single Emperor tied to the jewel, a highlanderical effect of Dragons-ate-dragon-to-become-dragon. So many souls clamored within the priest-king's poor heart until they ripped themselves free of their descendant-vessel, fulfilling the covenant between Alessia and Akatosh, that Sean Bean Dies In Every Movie. Souls devoured his juicy spirit, and then devoured each other, until there was only one Oversoul, dragonshaped by the redherrings of Marty's dying wishes.

Likely not, actually. Tiber Septim gave safe harbor to the remaining dragons near the beginning of the 3rd Era, and Battlespire suggests there was still at least one in service to the Empire under Uriel VII a few decades before he died. Given that Martin was dragonborn, I don't see why dragons would suddenly want to assert dominance over him and none of his predecessors since Tiber.

Unless part of the dragonfires ceremony involved the Emperor asserting the Empire's continued dominance over the dragons... but if the dragons' numbers were that low, I don't see the dragons as wanting to pick a fight with a dragonborn. They may want to dominate, but they're not stupid.

Of course, none of that means Martin couldn't kill a dragon and take its soul if he wanted, but he doesn't seem to be the type of guy to do that.

There are multiple Dragons. One of the quests in Daggerfall states that the Akatosh Chantry keeps sacred groves where Dragons live, and a witch has a Dragon familar.

Yeah its not impossible.parthurnaax was still around why not others. When skyrims release date was revealed I thought "akavir is gonna play a heavy role". It was the first thing I thought of when I imagined dragons in skyrim.
Of course they werent.

By the way I think dragons are still in akavir. I could b wrong.

Wasn't it said that the Dragons there were extinct? Still, there is at least Tosh Raka.

1 possible dragon = a land filled with dragons. Too many assumptions with no backing when it comes to Akavir, save for one or two extremely outdated material.

Seeing as he absorbs all the dragonsouls trapped inside the Amulet of Kings at the end of Oblivion, yes.

Where did you get that from?

The past Emperors have been dragonborn, who are people with the soul of a dragon (and during the Reman dynasty, some of the Emperors killed and absorbed more dragon souls themselves). The Amulet of Kings is a soul gem, and part of the dragonfires ceremony involves the Emperor binding their soul to it, so that it gets absorbed into the Amulet upon death. Martin shattered the AoK, releasing the souls in it... so, then what happens when you have a bunch of unbound dragon souls in the presence of a dragonborn?

They turn into Akatosh and beat the crap out of Mehrunes?

No, seriously makes sense.