Board Thread:Questions and Answers/@comment-186.74.47.241-20170918150823/@comment-33159082-20170922130309

My guess is that for a 10k investment you get help in the 3rd Arclent war, but that most of the knights die during it and the order gets disbanded again afterwards.(or needs a new higher PRon investment) For 50k the order survives and is somewhat helpful in the next conflict. 100k probably leaves the order in a very strong condition, which could decisively help in one future scenario.

In case it won't make a difference... well I have a savegame right before I invest in them. Guess I would have to replay from there then.;)