The danger will come with Charles, who has both an expensive taste of lifestyle anda pretty hierarchical view of the world.
主干:The danger will come with Charles
非限定性定语从句:who has both an expensive taste of lifestyleand a pretty hierarchical view of the world.who引导的非限定性定语从句修饰Charles。
翻译:给英国王室带来危险的会是查尔斯亲王,他既有奢侈的生活品味,又有浓重的等级制世界观。