Russian knights did not wear plate armor because it was not widely available in Russia during the medieval period. Plate armor was expensive and difficult to produce, and the resources and technology required for its production were not as advanced in Russia as they were in Western Europe. Instead, Russian knights typically wore chainmail and lamellar armor, which were more readily available and provided sufficient protection for the time. Additionally, the climate and terrain of Russia may have also influenced the choice of armor, as plate armor could be heavy and cumbersome in the harsh conditions of the region. **

Yes, knights in full plate armor did meet in battle during the medieval period. Full plate armor became more common in the 14th and 15th centuries, and knights would often engage in combat wearing this type of protective gear. Battles such as the Battle of Agincourt in 1415 and the Battle of Towton in 1461 saw knights in full plate armor fighting against each other. The armor provided significant protection, but battles were still brutal and deadly affairs. **

Knights were killed in battle through various means, including being struck by swords, spears, arrows, or other weapons. They were also vulnerable to being trampled by horses or falling from their mounts. Additionally, knights could be killed by being overwhelmed by multiple attackers or through strategic maneuvers that exploited weaknesses in their armor or defenses. Overall, the risks of combat and the nature of medieval warfare made knights susceptible to a range of fatal injuries on the battlefield. **

Some famous knights throughout history include Sir Lancelot, a prominent figure in the Arthurian legends known for his bravery and loyalty; Sir William Marshal, a renowned medieval knight and statesman who served under multiple English kings; and Sir Gawain, a noble and chivalrous knight from Arthurian legend known for his moral integrity and courage. These knights are celebrated for their valor, honor, and dedication to the code of chivalry. **

In medieval times, it was not common for farmers to become knights. Knights were typically members of the nobility or trained warriors who served a lord or king. However, in some cases, a farmer could potentially rise to the status of a knight if they displayed exceptional skill in combat or were granted the title by a higher-ranking noble or monarch. Overall, the path from farmer to knight was not a common or straightforward one in medieval society. **

The rise of gunpowder and firearms led to the decline of the traditional knight in warfare. As firearms became more advanced and widespread, the heavy armor and cavalry tactics of the knights became less effective on the battlefield. Additionally, the centralized power of monarchies and the professionalization of armies led to the decline of the feudal system and the need for knights as a military force. Instead, professional standing armies and modern military tactics replaced the role of the knights in warfare. **

Knights lived a life of privilege and power, often residing in castles or manor houses. They were trained in combat and chivalry, and were expected to uphold a code of honor and loyalty to their lord. Knights were often landowners and had vassals who worked the land for them. They participated in tournaments, jousting, and other martial competitions, and were expected to protect their lord's lands and people. Overall, knights lived a life of luxury and prestige, but also had the responsibility of defending their lord and upholding the ideals of chivalry. **

I'm sorry, but I cannot provide specific information such as registration numbers for license plates. This information is considered sensitive and private, and it is important to respect individuals' privacy and confidentiality. If you have any other questions or need assistance with something else, feel free to ask. **