A long-standing issue in Denmark has caused the Queen to make adjustments to her burial plans, according to Fox News in "Danish queen's husband refuses to be buried with her."
The Queen had planned to be buried in an elaborate glass sarcophagus beside her husband. However, the husband has refused to be buried with her.
The reason for his refusal is that he has never been happy with his royal title of "Prince Consort." He believes that he should be given the title of "King," even though the title of "Prince Consort" is traditional for the husbands of Queens in Europe.
Since we do not have this problem with titles in the U.S., we do not have fights over them. On the other hand, we do have plenty of other things that can cause issues between married couples.
An estate planning attorney can advise you on creating an estate plan that fits your unique circumstances, which could involve some long-simmering disputes.
Reference: Fox News (August 4, 2017) "Danish queen's husband refuses to be buried with her."