Final answer:
In feudal Europe, a monarch received loyalty and military service in return for land rights granted to nobles.
Step-by-step explanation:
In feudal Europe, a monarch received loyalty and military service in return for land rights granted to nobles. The feudal system was based on a system of protection, where a lord granted land (called fiefs) to vassals who pledged their loyalty and military service in exchange. The vassals, in turn, extracted wealth from the land and provided military support to the lord.