hmmm, I'll assume you mean martial training at the hight of the middle ages. According to Lichtuener, the German fight master, a knight should know spear, longsword, dagger. He also covers sword and buckler and wrestling in his manual. A knight should of course be trained to fight on horse back and foot.
Of course this is just one mans idea of knighthood who put it to paper in the early 1400's. I am sure you had many competing masters in his day who might have stressed other weapons. As you are aware, pikes, flails, maces, axes were also very popular in that period. But one would think if you master the spear and longsword the transition to pike should not be too hard.
As i said geography and time played a big roll. Of course the Roman Equistrians (knight class) did not practice longsword in the 1st centuary. Neither did the Athenian knights in ancient Greece at 500 bc. Yep, I forget what they where called but they had knights in ancient Greece. You see, originaly Knighthood was related to wealth rather then martial skill. In Athens to be a Knight the requirement was that you had to own two horses. Of course to own horses you had to own enough land for them to graze on.
You said above you where interested in French Knights of the 1400's. I think at this point they had already started moving towards paid soldiers. That is what killed knighthood. After the fall of Rome in the west, lords would give land in return for militery service. Not money. The monetary system was not stable yet. After the 1400's and into the 1500's as the monoarchies in europe somewhat stablized it became cheaper to hire soldiers when you needed them rather then give them land. This process did not happen at the same time throughout Europe. So again you see this all come back to land. The exception to the land rule for knights is the Crusading knights who where formed to protect the holylands
If you want to learn the specific way of using the weapons i mentioned earlier. I recommend a Tobler's book. Secrets of German Longsword fighting. Windsor also wrote a great book on longsword fighting. I recomend you start with Windsor, it is a beter introduction. Toblers book is better to read after because it is more detailed. I have a more complete list of books at the bottom of my webpage:
http://mysite.verizon.net/tsafa1/swordreview.htm
, Mounted Combat with Cut/thrust/smash (Chpt 9) and a section of duels, brawls, battles.