Q. Do children from a prior marriage attend the chupa of their parents?

A. It is customary that children from prior marriages do not attend the Chupa. (Nitey Gavriel 51: 9) Some quote in the name of Horav Eliashuv zt”l that it is out of respect to the divorced or deceased parent.

Horav Shlomo Miller Shlit’a pointed out that although the do not attend the marriage ceremony itself, they may attend the reception before and the seudah after.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a