Large queues formed outside Spanish embassies in Latin America on the final day that descendants of Spanish exiles from the Civil War in the 1930s can apply for citizenship. Most applicants were in Cuba and Argentina.
The scheme was open to people whose parents or grandparents fled Spain under Franco and during the 1936-39 civil war.
Since 2008 more than 200,000 people have been recognised as Spanish.
The law was passed in 2007. Under a provision added in 2008, citizenship wass offered to anyone whose parents or grandparents were born in Spain but left the country between 1936 and 1955.
The BBC reports a three-year period during which applications could be made expired on Tuesday.
As of 31 August, citizenship has been granted to 213,787 people out of 378,862 applications. The total by the end of the process is expected to reach 300,000.