Who is the mother of Tsarevich Ivan Ivanovich of the country where a bombing occurred in the system that Teatralnaya is part of?
Anastasia Romanovna
Title: Tsarevich Dmitry Ivanovich of Russia (1552–1553)
Passage: 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.
Title: August 2004 Moscow Metro bombing
Passage: 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.
Title: Teatralnaya (Moscow Metro)
Passage: Teatralnaya (, ) is an underground metro station on the Zamoskvoretskaya line of the Moscow Metro, named for the nearby Teatralnaya Square, the location of numerous theaters, including the famed Bolshoi Theatre. The station is unique in that it does not have its own entrance halls. The north escalator leads to Okhotniy Ryad and the south escalator to Ploshchad Revolyutsii.
Tsarevich Dmitry Ivanovich of Russia (1552–1553) August 2004 Moscow Metro bombing Teatralnaya (Moscow Metro)