No, they have never been found.
Anastasia didn't escape the murder of the Romanovs. Originally she and her younger brother Alexei were thought to have escaped, as their remains weren't found along side the rest of the family. But their bones were later discovered in the same forest area as the rest of the family and DNA found in the bones matched both Nikolay Romanov (Nicholas II) and his wife Alexandra Feodorovna (Alix of Hesse) confirming that the remains belonged to the two missing Romanov children.
The bones of Anastasia and her younger brother Alexei were found several years ago. Originally people thought the might have escaped as their remains weren't found alongside the rest of the family's. But their bones were later discovered in the same forest area as the rest of the family and DNA found in the bones matched both Nikolay Romanov (Nicholas II) and his wife Alexandra Feodorovna (Alix of Hesse) confirming that the remains belonged to the two missing Romanov children.
On July 17, 2008; the day after the remains of the Prince and Princess were identified; there was a memorial service at St. Peter and Paul Cathedral in St. Petersburg officiated by Archbishop Constantine.Among those who attended was Dimitri Romanov, who is the current Prince heir presumptive to the Romanov dynasty and the throne of Russia.
Anastasia Romanov, the youngest daughter of Tsar Nicholas II, was rumored to have escaped the assassination of her family in 1918, though there is no definitive evidence to support this claim. After the Bolsheviks executed the Romanov family, various individuals claimed to be Anastasia, leading to speculation about her survival. The most famous of these claimants was Anna Anderson, who spent decades maintaining that she was the lost princess. In 2007, DNA testing confirmed that the remains of the Romanov family, including Anastasia, had been found, effectively debunking the escape theory.
Anastasia was the youngest daughter of Tsar (czar) Nicholas II and Alexandra. Her father was the last Romanov czar in Russia, and in 1917, the family was killed by the Bolshevik secret police and the dynasty that had lasted for 304 years ended. Anastasia became one of the most famous members of the Romanov family because her remains were not found with her parents or sisters. However, several decades later her remains were discovered, but not after her story became famous because of the mystery. Several novels and movies have been made about her.
The Romanovs' bodies were exhumed in 1991 from a mass grave in Ekaterinburg, Russia, where they were originally buried after their execution in 1918. The remains were identified using DNA analysis and confirmed to be those of the Romanov family.
Scientists took DNA samples from the remains of the Romanov family and compared them to DNA samples from known living relatives to know they were authentic.
The remains of Anastasia Romanov were discovered in a mass grave in Yekaterinburg, Russia, in 1991. She, along with her family, was originally buried in a forest near Yekaterinburg after being executed in 1918. However, their remains were later exhumed and reburied in the Peter and Paul Cathedral in St. Petersburg, Russia, in 1998.
Since his remains were only found in 2007 and not officially identified until 2008, the burial procedure is still to be finalised.
You call your husband's senior brother simply a brother in-law. There is no difference whether he is a senior brother or a younger brother he remains your brother in-law.
The ruling family of Czarist Russia, in popular usage the last batch of Romanovs the immediate Clan of Czar Nicholas II and family- Czarina Alexandra, Czarevich ( crown Prince) Alexis, and the Grand Duchesses, In chronological order- Olga, Tatiana, Maria, Anastasia! The rest is history- worth studying and looking up!
St. Nicholas, Bishop of Myra, was a Greek born in the 3rd century from Asia Minor, which is now a part of modern Turkey. In later centuries his remains were removed to Italy, where they were enshrined.