The sinking of the U-boat by the Germans, the U-boat had about 100 Americans in it and they were killed.
European nobility originated in the feudal/seignorial system that arose in Europe during the Middle Ages. Originally, knights<span> or nobles were mounted warriors who swore allegiance to their sovereign and promised to fight for him in exchange for an allocation of land (usually together with serfs living thereon).
</span>What obligations did lords and vassals have under the feudal system<span>? A </span>lord<span>granted his </span>vassal<span> a fief. The </span>lord<span> promised to protect his </span>vassal. In return, thevassal<span> pledged loyalty to his </span>lord<span>, as well as military service, money, payments and advice</span><span>
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