When mourning customs observed, there are specific rules about which rules apply to which mourners, and for how long. There are complicated rules depending on the relationship to the deceased: A person will mourn for years for a spouse, but only a few months for a distant relative – or forever, in the case of Queen Victoria. mourning Prince Albert. These rules apply not only to clothing, but also to jewelry, handkerchiefs, door garlands and straw that reduce noise from the street.
https://www.washingtonpost.com/advice/2022/01/04/miss-manners-stationary-use-sympathy-note/?utm_source=rss&utm_medium=referral&utm_campaign=wp_lifestyle Miss Manners: What stationery to use when writing a sympathy note?