Samurai did not live in feudal Europe, but in feudal Japan. They were civil servants of the Japanese empire, with the duties of tax collector and land manager. During the period of feudal Japan, they gained military functions and became soldiers of the imperial aristocracy, from 930 to 1877, ending the era as a: ronin duelista (disgraced samurai) or master of arts, such as crafts, painting, or tea.
The statement: "In feudal Europe, Samurai protected the land of nobles," is false.
The samurai were the warriors of premodern Japan. The comprised the highest ranking social caste of the Edo Period. Samurai used a wide variety of weapons including bows and arrows, spears and guns, but their main weapon and symbol was the sword.
So, since Samurai did not belong to feudal Europe, the statement is false.
