In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
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Question: Passage: The Duchy of Prussia was a duchy in the eastern part of Prussia from 1525–1701. In 1525 during the Protestant Reformation, the Grand Master of the Teutonic Knights, Albert of Hohenzollern, secularized the Prussian State of the Teutonic Order, becoming Albert, Duke in Prussia. His duchy, which had its capital in Königsberg (Kaliningrad), was established as a fief of the Crown of Poland, as had been Teutonic Prussia since the Second Peace of Thorn in October 1466. This treaty had ended the War of the Cities or Thirteen Years' War and provided for the Order's cession of its rights over the western half of its territories to the Polish crown, which became the province of Royal Prussia, while the remaining part of the Order's land became a fief of the Kingdom of Poland (1385–1569). In the 17th century King John II Casimir of Poland submitted Frederick William to regain Prussian suzerainty in return for supporting Poland against Sweden. On July 29, 1657, they signed the Treaty of Wehlau in Wehlau (Polish: Welawa; now Znamensk), whereby Frederick William renounced a previous Swedish-Prussian alliance and John Casimir recognised Frederick William's full sovereignty over the Duchy of Prussia. Full sovereignty was a necessary prerequisite for upgrading the Duchy to Kingdom of Prussia in 1701.
 Link Information:  This treaty had ended the War of the Cities or Thirteen Years' War and provided for the Order's cession of its rights over the western half of its territories to the Polish crown, which became the province of Royal Prussia Answer: Thirteen Years

Answer: How long did the war that ended with the Teutonic Order conceding territorial rights to the Polish crown last?


Question: Passage: In 1983 elections, N. T. Rama Rao came to power defeating the Indian National Congress. He praised the Naxalites for their patriotism before the elections. After coming to power, he demonstrated no significant change in government policy towards the revolutionary movement. Particularly after he was elected for a second time in 1985, his government put all its efforts to suppress the Naxalite movement in the state. Varavara Rao too was subjected to severe repression during this time. Six cases were foisted against him in 1985 alone. In July that year, along with functionaries of other people's organisations, he undertook an all India tour to make the people aware of the repression that was going on in Andhra Pradesh. After visiting Maharashtra, Madhya Pradesh, Bihar, West Bengal, New Delhi and Tamil Nadu, Varavara Rao returned to Andhra Pradesh in September to attend court cases. Dr. Ramanatham, a pediatrician and civil liberties activist was a close friend of Varavara Rao. While killing Dr. Ramanatham, and on several other occasions, police openly declared that killing Varavara Rao was their aim. With his life at risk, Varavara Rao could not discharge his duties as Secretary of Virasam and spokesperson of revolutionary literary movement. He was not able to move freely in Andhra Pradesh. Warangal has become a forbidden place for him. Armed and unarmed ruffians and police in civil clothes attacked his house on several occasions. Persecution against his friends in the movement was also mounted. Taking into consideration all these developments, Varavara Rao chose to cancel his bail in Secunderabad Conspiracy Case. On his request, his bail was cancelled and he was sent to jail on 26 December 1985.
 Link Information: A Naxal or Naxalite () is a member of any political organisation that claims the legacy of the Communist Party of India (Marxist-Leninist), founded in Calcutta in 1969. Answer: 14

Answer: How long had the Naxalites been in existence for the year Rao came to power?


Question: Passage: With the start of the Boshin War, Hayashi Tadataka was at Jōzai, and though he was not able to participate in the Battle of Toba–Fushimi, he set himself apart from all other fudai lords in that he invoked his hereditary obligation to the Tokugawa clan in going to war. Taking part in the guerrilla warfare efforts of Hitomi Katsutarō, Tadataka departed his domain with his entire retainer force, and fought from Izu Province all the way north to Aizu and Sendai as part of the Ōuetsu Reppan Dōmei, finally surrendering when he received news that the main Tokugawa family had been given a fief at Sunpu (modern-day Shizuoka), in Suruga Province. However, in punishment for Tadataka's actions, Jōzai was taken over by the new government. Tadataka himself was placed in confinement at the Edo residence of the Ogasawara family of Karatsu, of which his family was a branch line. He was later released, and held several government positions before his retirement, and was also made a baron (danshaku) in the kazoku peerage. Hayashi Tadataka was the last of the former daimyōs to die, in 1941.
 Link Information:  the Japanese Revolution, was a civil war in Japan, fought from 1868 to 1869 Answer: 1869 

Answer:
What year did the war end in which Hayashi Tadataka was at Jōza?