Tobolsk (Russian: Тобо́льск) is part of the Tyumen Oblast in Russia. It is near many rivers. It is one of the few towns in Russia that have stone fortresses, known as kremlins. According to the census in 2002, 92,880 people live inside it. Its economy depends mostly on its oil. In February 1917, Nicholas II abdicated the throne, and his family, including his youngest daughter Anastasia, were moved to Tobolsk.