Ive seen some accounts as well of tigers beating lions or killing them, but generally its not an adult full maned lion killed, most are lioness's young males, aged lions, or something else aided the tiger in the win. You have to put the accounts in chronological order to avoid repeats and put in the full background info, many people backing the tiger leave out the full background info, and they do this because they don't want the specifics of the fight or the age or sex or health of the lion to be seen. If you have any accounts I'm missing just let me know, I'll add in them in the tiger kills lions list.
Ive seen some decent information historically in quite a few cultures China has some compelling info. But it can be sometimes difficult just turning up info in word searches initially or in the other language using the google translate even, but sometimes its that odd book or some other account leads to something else and you've found some interesting stuff.
It is interesting some of the pics you're posting as its showing the people of Persia were quite familiar with the lions, they were definitely prevalent there and apart of their lives to say the least, there is quite a few references to lions in the bible also which is Israel and the surrounding countries, it seems in large numbers they were all over the middle east. I'm sure the Caspian tigers were also in high numbers all these animals were just thriving more before the gun. I just wonder about the anatomy of the Persian lion or Barbary, I wonder did they differ in design compared to the African, because the African lion's terrain is possibly different, but it seems lions whatever species would rather inhabit more open places not the thick dense jungles that the tigers inhabit and are designed for.