Сколько лет Дми́трий Ю́рьевич Шемя́ка был Великим князем Московским?
Dmitriy Yurievich Shemyaka (Дмитрий Юрьевич Шемяка in Russian) (died 1453) was the second son of Yury of Zvenigorod by Anastasia of Smolensk and grandson of Dmitri Donskoi. His hereditary patrimony was the rich Northern town Galich-Mersky. Shemyaka (1445, 1446–1447) was twice Grand Prince of Moscow.
1445, 1446–1447