Complex sentence: In the Lady Penitent series, 1379 DR, Qilué, along with Eilistraee that was inhabitating her body were beheaded with the crescent blade wielded by Halisstra Melarn, who was in turn later killed by another of Eilistraee's clergy.
Split into simpler sentences: In the Lady Penitent series, 1379 DR, Qilué, along with Eilistraee, who was then inhabitating her body, were beheaded with the crescent blade wielded by Halisstra Melarn. Halisstra was in turn later killed by another of Eilistraee's clergy.