Complex sentence: Sorkhokhtani died in February 1252 around the Mongol New Year festival, a few months after Mongke's accession ceremony, and was buried in a Christian church in Kan-su.
Split into simpler sentences: Sorkhokhtani died in February 1252 around the Mongol New Year festival, a few months after Mongke's accession ceremony. Sorghaghtani died in 1252, and was buried in a Christian church in Kan-su.