Why did Russia decide to dig up relatives bodies and claim they were the royal romanovs after one of the descendants became President in 1993 and now another is President alexisdaughter?

The decision to dig up and identify the Romanov remains was made to put an end to years of speculation surrounding their deaths. The identification in 1991 was done to confirm their identities through DNA analysis after the fall of the Soviet Union. President Yeltsin in 1993 and President Putin in more recent years were not directly involved in the decision or the identification process.