Batu and Güyük power struggle

Timeline

1. 1242–1246Mongol Empire · EurasiaAfter Ögedei's death, Batu supported Möngke of Tolui's line over Güyük of Ögedei's line, worsening relations with Güyük and his mother Töregene. Batu refused to attend the 1246 kurultai; the two sides exchanged envoys with accusations, and the political rift became public.
2. 1247–1248western Mongolian Plateau · Mongolian PlateauAfter accession, Güyük accused Batu of executing imperial officials without authorization and in 1247 personally led a large army east against the Golden Horde. The army marched west to Qume-Sengjir when Güyük died of illness, halting the campaign; Batu preserved his domains and continued to influence the imperial center.