Burial Customs for Second Marriages
Question
If a widowed woman remarries, who would she be buried next to after her death...her first husband or the second husband? A friend told me he heard from a posek that her second husband and her are buried adjacent to each other, and she is prohibited from being buried next to her first husband. If this is the halacha, I am looking for the source. I do know (but I can use a source here, too) she is prohibited from observing the yahrtzeit of her first husband once she remarries, so, kal vachomer, a prohibition to be buried next to her first husband would make sense. BTW, the woman made a promise to her husband before he died to be buried next to him, so it appears she made a neder, which begs the question of how one handles a neder if the vow is a violation of halacha.