Question: What is key event of h capital that has Grand Duchy of Moscow ?
Paraphrase: What is key occasion of h capital that has Terrific Duchy of Moscow ?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q170770 wdt:P36 ?X . ?X wdt:P793 ?answer}
Answer: Moscow Metro, Battle of Moscow, conflagration, death by burning, Fire of Moscow, plague epidemic, Fire of Moscow, Siege of Moscow, Evacuation in the Soviet Union, General Plan for reconstruction of Moscow, French occupation of Moscow, Polish-Lithuanian occupation of Moscow, Plague Riot, Siege of Moscow, sack, Siege of Moscow in 1238, 800th Anniversary of Moscow