Complex sentence: Madali was able to escape to Margilan but was the city was captured and killed by Nasrullah Khan along with the rest of his family including his mother, sons, and brothers.
Split into simpler sentences: Madali was able to escape to Margilan but was the city was captured by Nasrullah Khan. He was later executed by Nasrullah along with the rest of his family including his mother, sons, and brothers.