fear tactics and a lot of appealing to German nationalism
The loyal knights, or the people who serve under them
The crusades Greatly affected the feudal system and began to lose it hold on society which eventually led to the Renaissance. Knights had to sell their land to be able to live, due to the feudal system crashing. So if they were not able to make enough by selling their land, they were left broke. They were also forced to serve nobles in personal armies.
If you are not being specific, the Titanic crash an Iceberg.That was the only major thing I think happen.