A. ______ Religous men who lived in isolated communities
B. ______ of Aquitaine-one of the most powerful women of the middle ages
C. ______ a political system in which land is given for military service
D. ______ a code of behavior that knights had to follow
E. ______ farm workers who were tied to the land they worked
F. ______ someone who received land in exchange for military service
G. ______ a large estate
H. ______ Frankish king who created a huge empire