In this task, you're given a context, 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 context 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 context or linked information.
--------
Question: Context: When the Countess von Gleichen's brother, Francis, inherited his cousin's Marquessate of Hertford in 1870 Link Information: Francis George Hugh Seymour, 5th Marquess of Hertford (11 February 1812 – 25 January 1884),  Answer: 58

Answer: At what age was the Countess von Gelichen's brother when he inherited his cousin's Marquesstate of Hertford in 1870?


Question: Context: Taube was born in New York City Link Information: with an estimated 19,979,477 people in its 2018 Metropolitan Statistical Area and 22,679,948 residents in its Combined Statistical Area Answer: 19,979,477

Answer: How many people live in the city that Taube was born?


Question: Context: Daniil Vasilievich Kazakevich (Russian: Даниил Васильевич Казакевич; 16 December 1902 – 28 November 1988) was a Belorussian Soviet Lieutenant general and Hero of the Soviet Union. Kazakevich was drafted into the Red Army in 1920 and fought in the Polish–Soviet War. Link Information: The Polish–Soviet War (14 February 1919 – 18 October 1920) was fought by the Second Polish Republic, the Ukrainian People's Republic and the proto-Soviet Union Answer: 1.8

Answer:
How many years did the war that Daniil Kazakevich fought in in 1920 last?