Title: Tikhvin
Content:  Within the framework of administrative divisions, Tikhvin serves as the administrative center of Tikhvinsky District. As an administrative division, it is, together with nineteen rural localities, incorporated within Tikhvinsky District as Tikhvinskoye Settlement Municipal Formation. As a municipal division, Tikhvinskoye Settlement Municipal Formation is incorporated within Tikhvinsky Municipal District as Tikhvinskoye Urban Settlement.
Title: Tikhvinsky District
Content:  Tikhvinsky District (Ти́хвинский райо́н) is an administrative and municipal district (raion), one of the seventeen in Leningrad Oblast, Russia. It is located in the southeast of the oblast and borders with Lodeynopolsky District in the north, Podporozhsky District in the northeast, Babayevsky District of Vologda Oblast in the east, Boksitogorsky District in the southeast, Lyubytinsky District of Novgorod Oblast in the south, Kirishsky District in the west, and Volkhovsky District in the northwest. The area of the district is 7018 km2. Its administrative center is the town of Tikhvin. Population (excluding the administrative center): 14,637 (2002 Census);
Title: Tikhvin
Content:  Tikhvin (Ти́хвин) is a town and the administrative center of Tikhvinsky District in Leningrad Oblast, Russia, located on both banks of the Tikhvinka River in the east of the oblast, 200 km east of St. Petersburg. Tikhvin is also an industrial and cultural center of the district, as well as its transportation hub. Population: It was previously known as Predtechensky pogost, Tikhvinsky posad.
Title: Tikhvinsky District
Content:  was built in the end of the 19th century. In June 1918, five uyezds of Novgorod Governorate, including Tikhvinsky Uyezd, were split off to form Cherepovets Governorate, with the administrative center in Cherepovets. On August 1, 1927, the uyezds were abolished and Tikhvinsky District, with the administrative center in Tikhvin, was established. The governorates were also abolished, and the district was a part of Leningrad Okrug of Leningrad Oblast. It included parts of former Tikhvinsky Uyezd. On July 23, 1930, the okrugs were abolished as well, and the districts were directly subordinated to the oblast. In 1941, during World War II, German troops tried to encircle Leningrad. In November 1941, they occupied the 
Title: Tikhvinsky Uyezd
Content:  Tikhvinsky Uyezd (Тихвинский уезд) was one of the subdivisions of the Novgorod Governorate of the Russian Empire. It was situated in the northcentral part of the governorate. Its administrative centre was Tikhvin.
Title: Tikhvinsky District
Content:  The industrial enterprises of the district are concentrated in the town of Tikhvin. They include a ferroalloy plant, a railway carriage production plant, as well as enterprises of timber, textile, and food industries.
Title: Tikhvinsky District
Content:  The area was populated by Balto-Finnic peoples, whose descendants, Vepsians, still live in the district. Tikhvin was first mentioned in 1383 as Prechistensky Pogost. Until the 15th century, it was a part of the Novgorod Republic. After the fall of the republic, it was, together will all Novgorod Lands, annexed by the Grand Duchy of Moscow. The area was included into Obozerskaya Pyatina, one of the pyatinas which Novgorod Lands were divided into. Tikhvin quickly developed as an important trade center due to its location on one of the main waterways, connecting the basins of the Neva and the Volga. It was also a pilgrimage center, since the icon of the Theotokos of 
Title: Tikhvinsky District
Content:  of Tikhvin and held it for a month. The southwestern part of the district was occupied between October and December 1941. In 1945, Tikhvin was made a town of oblast significance, and on July 25, 1952, Boksitogorsky District split off Tikhvinsky District. In 2010, the administrative division of Leningrad Oblast was harmonized with the municipal division, and Tikhvin was made the town of district significance. Another district established on August 1, 1927 as a part of Leningrad Okrug of Leningrad Oblast was Kapshinsky District, with the administrative center in the settlement of Shugozero. On February 1, 1963, the district was abolished, and, after a short period, split between Boksitogorsky and Tikhvinsky Districts.
Title: Tuzhinsky District
Content:  Tuzhinsky District (Тужи́нский райо́н) is an administrative and municipal district (raion), one of the thirty-nine in Kirov Oblast, Russia. It is located in the southwest of the oblast. The area of the district is 1468 km2. Its administrative center is the urban locality (an urban-type settlement) of Tuzha. Population: 10,396 (2002 Census);  The population of Tuzha accounts for 59.4% of the district's total population.
Title: Tikhvinka
Content:  The Tikhvinka (Тихвинка) is a river in Boksitogorsky and Tikhvinsky Districts of Leningrad Oblast, Russia, a right and the biggest tributary of the Syas. The town of Tikhvin is located on its banks. It is 144 km long, and the area of its basin 2140 km2. The main tributaries of the Tikhvinka are the Ryadan (left) and the Shomushka (right). The source of the Tikhvinka is in Lake Yeglino in Boksitogorsky District, several kilometers northwest of the urban-type settlement of Yefimovsky. The river flows northwest, through Lake Ozerskoye, turns west and eventually southwest. Upstream of the village of Astrachi the Tikhvinka accepts the Ryadan from the left and turns west. Downstream of Astrachi, the Tikhvinka enters Tikhvinsky District and flows through the town of Tikhvin. The mouth of the Tikhvinka is located between the villages 

Question: What is the capital of Tikhvinsky District?
Answer: Tikhvin.
Tihvinä.