FMIL lost her husband of 35 years recently (in February). FI feels that introducing her at the reception and having her walk in alone will make her uncomfortable and sad (which obviously we want to avoid). He also does not want his father acknowledged/introduced as they do not have a close relationship. I do, however, want my parents to be introduced and enter the reception prior to the bridal party. They are paying for nearly the entire event and I want to make sure they are acknowledged as my parents and as the hosts of the event.
How can we acknowledge FMIL in a way that makes her feel included but not uncomfortable or as an afterthought?