“头衔的”常见英文表达可以是 of a title 或 pertaining to a title ，具体使用哪种可根据语境来定。例如：
The responsibilities of a title (or the title's responsibilities) come with great authority. （头衔带来的责任伴随着很大的权力。 ）
This regulation is pertaining to a title and its associated privileges. （这条规定与头衔及其相关特权有关 。 ）