Ducal states at that time built walls to defend their own territories. 当时的各个诸侯国为了保护自己的领地而修建城墙。
It is nice to read in these pages that, when ducal families were very good and were even praised by American journalists. 这几页里讲的东西读起来不错，公爵家族好起来特别好，甚至美国的闻记者也称赞不已。
