Question: Who is the mother of Tsarevich Ivan Ivanovich, formerly of the county that experienced the 2004 bombing of the transit line that contains Kotelniki station?

full_context: Document 1: Grand Duchess Xenia Alexandrovna of Russia: Grand Duchess Xenia Alexandrovna of Russia (; – 20 April 1960) was the elder daughter and fourth child of Tsar Alexander III of Russia and Empress Maria Feodorovna of Russia (née Princess Dagmar of Denmark) and the sister of Emperor Nicholas II. She married a cousin, Grand Duke Alexander Mikhailovich of Russia, with whom she had seven children. She was the mother-in-law of Felix Yusupov and a cousin of Grand Duke Dmitri Pavlovich of Russia who, together, killed Grigori Rasputin, holy healer to her nephew, the haemophiliac Tsarevich Alexei Nikolaevich of Russia. During her brother's reign she recorded in her diary and letters increasing concern about his rule. After the fall of the monarchy in February 1917, she fled Russia, eventually settling in the United Kingdom. Her grandson Prince Andrew Andreevich has been a head of the Romanov Family since December 2016.
Document 2: Boston: On April 15, 2013, two Chechen Islamist brothers exploded two bombs near the finish line of the Boston Marathon, killing three people and injuring roughly 264.
Document 3: Zhulebino (Moscow Metro): Zhulebino () is an eastern terminus on Moscow Metro's Tagansko-Krasnopresnenskaya Line. Zhulebino was opened on 9 November 2013. The construction lasted for two years. The station was to be opened on 6 November 2013, however due to a technical failure of a train at neighbouring Lermontovsky Prospekt station it was delayed until the 9th. Its location is outside the Moscow Ring Road beltway.
Document 4: August 2004 Moscow Metro bombing: The official investigation concluded that it was organized by the same group as the February 2004 Moscow metro bombing, as well as two previous terrorist attacks on bus stops in Voronezh, southern Russia, in 2004. The deaths included the bomber and her accomplice, Nikolay Kipkeev (Kipkeyev), the head of an Islamic militant group Karachay Jamaat from the republic of Karachay–Cherkessia, as the bomb apparently exploded prematurely while the two were standing in the entrance hall of the metro station.
Document 5: Novogireyevo (Moscow Metro): Novogireyevo () is a Moscow Metro station on the Kalininsko-Solntsevskaya Line. It was constructed in 1979 in Moscow's Novogireyevo District, as the final terminus of the Kalininsky radius. The status of terminus ended following the inauguration of Novokosino, extension to the east, on August 30, 2012. The station has entrances at both ends, and is at a depth of nine metres. About 110 000 passengers use Novogireyevo station daily.
Document 6: List of Russian monarchs: The Time of Troubles came to a close with the election of Michael Romanov as Tsar in 1613. Michael officially reigned as Tsar, though his father, the Patriarch Philaret (died 1633) initially held the real power. However, Michael's descendents would rule Russia, first as Tsars and later as Emperors, until the Russian Revolution of 1917. Peter the Great (reigned 1682 - 1725), a grandson of Michael Romanov, reorganized the Russian state along more Western lines, establishing the Russian Empire in 1721.
Document 7: 2004 Madrid train bombings: The 2004 Madrid train bombings (also known in Spain as 11-M) were nearly simultaneous, coordinated bombings against the Cercanías commuter train system of Madrid, Spain, on the morning of 11 March 2004 – three days before Spain's general elections. The explosions killed 193 people and injured around 2,000. The bombings constituted the deadliest terrorist attack carried out in the history of Spain and the deadliest in Europe since the 1988 bombing of Pan Am Flight 103 over Lockerbie, Scotland. The official investigation by the Spanish judiciary found that the attacks were directed by an al-Qaeda terrorist cell, although no direct al-Qaeda participation has been established. Although they had no role in the planning or implementation, the Spanish miners who sold the explosives to the terrorists were also arrested.
Document 8: Dmitry Borisovich: Dmitry Borisovich (; 11 September 1253, Rostov – 1294, Rostov) was a Russian nobleman. He was the eldest of the three sons of Prince Rostov Boris Vasylkovych from his marriage to Princess Maria Yaroslavna of Murom. He was Prince of Rostov (1278–1286 and 1288–1294) and Prince of Uglich (1285–1288).
Document 9: Jaish-e-Mohammed: An informant, posing as a member of Jaish-e-Mohammed, helped police to arrest four people allegedly plotting to bomb a New York City synagogue as well as to shoot Stinger missiles at military aircraft in the United States. The arrest of the four took place in May 2009. One of the four, by the name of James Cromitie, allegedly expressed the desire to join Jaish-e-Mohammed. This expression allegedly took place approximately a year prior to this arrest.
Document 10: Kotelniki (Moscow Metro): Kotelniki () is a station on the Moscow Metro's Tagansko-Krasnopresnenskaya Line. The eastern terminus of the line, east of the station of Zhulebino, was opened on 21 September 2015. The station is located in the town of Kotelniki of Moscow Oblast. It is the second station of Moscow Metro in Moscow Oblast after Myakinino. In 1984, after the western part of the town of Lyubertsy was transferred to Moscow, rapid urban development started. The whole area, along with Lyubertsy and other areas along the Kazansky and Ryazansky suburban directions of Moscow Railway were strongly dependent on the station of Vykhino, then the terminus of the Tagansko-Krasnopresnenskaya Line and a transfer station to both railway directions. In the 2000s, Vykhino was heavily overloaded. Eventually, the decision was taken to extend the Tagansko-Krasnopresnenskaya Line beyond Vykhino. The construction of the first stretch, with the stations of Lermontovsky Prospekt and Zhulebino, was completed on 9 November 2013. The second stretch connected Zhulebino and Kotelniki.
Document 11: Kotlyakovskoya Cemetery bombing: The Kotlyakovskoye Cemetery bombing was an attack on a funeral service in Moscow which killed fourteen people on November 11, 1996. The bombing, carried out via remote control, targeted members of an Afghan War veterans support group as well as their families. The victims were attending the funeral of Mikhail Lihodey, the former president of the veterans group who had been killed with his bodyguard in 1994.
Document 12: Kakhovskaya (Moscow Metro): Kakhovskaya () is a temporarily closed station of the Moscow Metro's Kakhovskaya line. It was opened on 11 August 1969 as the southern terminus of the Zamoskvoretskaya line, and from 1983 until 1995 was the terminus of the Kahovskaya branch of this line. Since the detachment of the present Kakhovskaya line in 1995, the station has been its western terminus.
Document 13: Tsarevich Dmitry Ivanovich of Russia (1552–1553): Dmitri Ivanovich (; 11 October 155226 June 1553) was the first Tsarevich or Tsesarevich - the heir apparent - of the Tsardom of Russia, as the eldest son of Ivan the Terrible, or "Ivan IV of Russia" and his first Tsaritsa, Anastasia Romanovna. He was the third child and first son of the couple and died in infancy.
Document 14: Pyatnitskoye Shosse: Pyatnitskoye Shosse () is a Moscow Metro station in the Mitino District, North-Western Administrative Okrug, Moscow, Russia. It is the northwestern terminus of the Arbatsko-Pokrovskaya Line. The station is located under the intersection of Pyatnitskoye Highway and Mitinskaya street.
Document 15: Tsarevna Catherine Ivanovna of Russia: Tsarevna Catherine Ivanovna of Russia (20 October 1691 – 14 June 1733) was a daughter of Tsar Ivan V and Praskovia Saltykova, eldest sister of Empress Anna of Russia and niece of Peter the Great. By her marriage, she was a Duchess of Mecklenburg-Schwerin.
ground_truth: Anastasia Romanovna
sub_queries: Kotelniki >> part of Answer: Moscow Metro
August 2004 Moscow Metro bombing >> country Answer: Russia
Tsarevich Ivan Ivanovich of Russia >> mother Answer: Anastasia Romanovna