Complex sentence: Nawab Bai seems to have lost her charms and with them her husband's favour rather early in life, and ended her days some time before the middle of 1691 at Delhi, after many years of separation from her husband and sons.
Split into simpler sentences: Nawab Bai seems to have lost her charms and her husband's favor rather early in life. She ended her days some time before the middle of 1691 at Delhi, after many years of separation from her husband and sons.