Q. Do people have to stand when the Chosson gets an Aliya and walks towards the Torah?
A. Poskim write that it is the minhag to stand for him since he is considered as a king. (Orchos Chaim – H. Kiddushin p. 66, Rokeach 355 and others)
Rabbi A. Bartfeld as revised by Horav Dovid Pam, Horav Aharon Miller and Horav Chanoch Ehrentreu Shlit’a.