When populations were quickly decreased by causes such as the Black Death or devastating warfare ( for example, Genghis Khan's Mongol hordes in eastern and central Europe, Thirty Years ' War in Germany ), this could lead to settlements being abandoned.

When Genghis Khan returned from his campaign the new emperor Xianzong pled with him, but the general Aša-gambu challenged Genghis Khan.

When Genghis Khan died in 1227, he left 4, 000 Mongol men to Jochi's family.

When Genghis Khan's youngest brother Temuge threatened Toregene to seize the throne, Guyuk came to Karakorum to try and secure his position.

When Möngke Khan became Great Khan in 1251, he immediately set out to implement his grandfather Genghis Khan's plan for world empire.

When Subutai heard in 1242 that Grand Khan Ögedei had died the previous year, the Mongol army retreated eastward, because Subutai had three princes of the blood in his command and Genghis Khan had made clear that all descendants of the Khagan ( Grand Khan ) should return to the Mongol capital of Karakorum for the kurultai which would elect the next Khagan.

When Muhammad II of Khwarezm executed the merchants dispatched by the Mongols, Genghis Khan declared war on Khwārazm-Shāh dynasty in 1219.

When the army who awaited the enemy was busy fighting the Mongolian vanguard, Genghis Khan led the main force towards the sultan who was trapped between the Mongols and the river.

When he was 17 years old, Genghis Khan experienced the disastrous defeat of Khalakhaljid Sands against the army of Jamukha.

When Genghis Khan ’ s youngest brother, Temuge, threatened the Great Khatun Toregene in an attempt to seize the throne, Guyuk came to Mongolia from Emil to secure his position immediately.

When the papal envoy John of Plano Carpini protested Mongol attacks on the Catholic kingdoms of Europe, Guyuk stated that these people had slain Mongol envoys in the time of Genghis Khan and Ogedei Khan.

When Genghis Khan was deciding who should succeed him he had trouble choosing between his four sons.

When Genghis Khan returned home he sent for Jochi.

When the latter refused to obey and asked a pardon Genghis Khan sent Chagatai and Ögedei against him.

When Genghis conquered the Merkits in 1204, he gave Toregene to Ögedei as his second wife.

When Temuge Otchigen, the youngest brother of Genghis, gathered his men and tried to unsuccessfully seize the throne, Guyuk quickly came to meet him.

When rumors reached Jebe, he immediately returned to where Genghis Khan was and offered 100 white horses ( the same kind of horse that Genghis Khan was riding when Jebe shot the horse ) as a sign of loyalty.

When Count Olaf appears as Coach Genghis, the Quagmires decide to involve themselves ; they research Olaf's past crimes in old newspapers in the school library and sneak out of Vice Principal Nero's concerts to spy on him and the Baudelaires.

When Jebe ( one of the Mongol generals pursuing Muhammad ) heard of Ala ad-Din Muhammad's death, he asked Genghis Khan for a year or two to continue his conquests before returning to Mongolia via the Caucasus.

When last Tayan Khan was killed after a battle with Genghis Khan in 1203, his son Kuchlug with his remaining Naiman troops fled to the Kara-Khitan.

When integrating new soldiers into the army, Genghis divided the soldiers under different leaders to break up the social and tribal connections, so there was no division based on heritage of tribal alliances.

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When his uncle Tughril died he was succeeded by Suleiman, Alp Arslan's brother.

When Darnley died in 1927 his widow presented the urn to the Marylebone Cricket Club and that was the key event in establishing the urn as the physical embodiment of the legendary ashes.

When the body died, parts of its soul known as ka ( body double ) and the ba ( personality ) would go to the Kingdom of the Dead.

When Mannerism matured after 1520 ( The year Raphael died ), all the representational problems had been solved.

When Faustina died in 141, Antoninus was greatly distressed.

When Arminius died before he could satisfy Holland's State General's request for a 14-page paper outlining his views, the Remonstrants replied in his stead crafting the Five articles of Remonstrance.

When the news spread that Agrippina had died, the Roman army, senate and various people sent him letters of congratulations that he had been saved from his mother's plots.

When King Æthelwulf died in 858, Wessex was ruled by three of Alfred's brothers in succession, Æthelbald, Æthelbert and Æthelred.

When his brother and his infant son died, Andrew ascended the throne and started to grant royal domains to his partisans.

When the Emperor Henry I died on 11 July 1216, Andrew was planning to acquire the imperial throne, but the barons of the Latin Empire proclaimed his father-in-law, Peter of Courtenay their emperor.

When Valdemar died in 1182, his son succeeded him as Canute VI, and Absalon served as Canute VI's counsellor.

When Kerbogha was defeated, Adhemar organized a council in an attempt to settle the leadership disputes, but he died on 1 August 1098, probably of typhus.

When his eldest daughters died of consumption in 1825, Maria on 6 May and Elizabeth on 15 June, Charlotte and Emily were immediately brought home.

When the apostles died, they were replaced by their writings.

When Diabelli died in 1858, Spina continued to run the firm, and published much music by Johann Strauss II and Josef Strauss.

When dictator Franco died in 1975, his successor Juan Carlos I played his part as the living symbol of the transition of Spain to a democratic constitutional monarchy.

When her husband Otto I died in 973 he was succeeded by their son Otto II, and Adelaide for some years exercised a powerful influence at court.

When Theophano died in 991, Adelaide was restored to the regency of her grandson.

When the peace treaty was signed in February, 1828, Abbas Mirza sought to restore order in the province of Khorasan, which was nominally under Persian supremacy, and while engaged in the task died at Mashhad in 1833.

When Afzal Khan died at the end of the year, Azam Khan became the new ruler, with Abdur Rahman as his governor in the northern province.

When Artemis and Apollo heard this impiety, Apollo killed her sons as they practiced athletics, and Artemis shot her daughters, who died instantly without a sound.

When he was about 18 years old, his parents died and left him with the care of his unmarried sister.

When he died in August 1945 he left the remainder to the National Trust.

When Stalin died of a stroke on 5 March 1953, Olga Ivinskaya was imprisoned in the Gulag, and Pasternak was in Moscow.