Which of these dynasties is Russian?

Actually Holstein-Gottorp are related to Habsburg and there are Holstein-Gottorp-Habsburg etc. Habsburg was a huge royal line within Germany and Austria, since a lot of the royals and aristocrats had arranged marriage between them most of the European royal houses are related in one shape or form. Mostly by marriage to keep the "blue line"clean but also to gain power and land. Habsburg are also related to the Spanish royal house if you go back x amount of hundred years.