The Russian royal family
Stephanie Romanov's birth name is Stephanie A. Romanov.
Ernst Romanov's birth name is Romanov, Ernst Ivanovich.
Nikolai Romanov's birth name is Nikolai Romanovitch Romanov.
Aleksey Nikolaeyvitch Romanov's birth name is Alexei Nikolaevich Romanov.
Nicholas II's last name was Romanov. His full name was Nicholas II Alexanderovich Romanov.
Romanov All Russian Tsars after Michael I claimed the name Romanov, and it was politically acknowledged. However, according to the technical laws of descent, the right to the name Romanov was lost after the reign of Catherine the Great due to marriages by Empresses. The legitimate name of the family was Holstein-Gottorp, sometimes called Holstein-Gottorp-Romanov.
Romanov
The name of the Russian dynasty is the Romanov dynasty.
the Romanov's
The Imperial or Romanov Eagle.
Romanov
Yes, Michael Romanov, the first Tsar of the Romanov dynasty, was often referred to as "Mikhail Fedorovich." This name reflects his full name, with "Fedorovich" indicating that he was the son of Feodor. Additionally, he is sometimes referred to simply as "Mikhail" in historical contexts.