Templar Knights Poll

[Northnovas]

I am half way through this AAR and the Mongols were beaten back but at a cost of expansion. It is the start of the 1300's and I would expect the Timurids to show soon. I have a small window and consider the possibilities. The plague has also arrived.
Should I prepare or attack my neighbours to grab some land and who should I attack?

I am obviously a very slow turtle when I play and not the ninja kind. I would appreciate to hear some strategy so I can meet the victory conditions.