I was told it is okay to post it here.
I took the Key Memory and Key Relationship concept for Blade Runner, modified it slightly and adapted it for The One Ring. Depending on the Heroic Culture and the Calling, the results will be different for the Key Memory. I thought it would be a nice way to get a bit of a backstory for your hero, even more so in combination with the Lifepaths. I copied some of the results from Blade Runner, but a lot of it is by me specificially for The One Ring.
The extras in the 2nd link contain a Lifepath for High Elves of Rivendell (text is from the 1st edition and not by me), and a dice table for rolling the Heroic Culture and Calling. So, you can randomize everything and try out the result tables of the Key Memories and Relationships.
You need the dice from The One Ring, and sometimes a D8 and D10, but there are enough dice rollers out there for those dice.
Key Memory and Key Relationship
Extras and Lifepath for High Elves of Rivendell
I hope, you get some inspiration out of it. If anyone uses it, I would be curious what kind of combinations you rolled. Just post it below.