How many generals can Napoleon recruit in Total War and how can he recruit more generals?

The number of generals is related to your skills and the level of military construction. Military architecture is the mainstay. You can recruit generals when you are promoted to military school. So far, I haven't figured out how many generals I can recruit at most (I can recruit 24 generals to conquer Europe). Therefore, if the landlord urgently needs generals, he will turn the imperial court or war zone into a barracks, and then upgrade to a military school without attacking the next place! I forgot to mention that I called 1.3.