查来的：“北魏将鲜卑姓改为汉姓，西魏北周改回鲜卑姓，杨坚掌权后又改回汉姓”，VeryComplicated!

https://www.sohu.com/a/666228509_121249605#:~:text=%E5%BB%BA%E6%AD%A6%E4%B8%89%E5%B9%B4%EF%BC%88496,%E5%B0%89%E8%BF%9F%E2%86%92%E5%B0%89%E7%AD%89%E7%AD%89%E3%80%82