Queen Victoria was named Alexandrina Victoria. Her parents, the Duke and Duchess of Kent, had hoped to name their daughter Elizabeth, the name of a Queen. However, the Prince Regent had different ideas. He was disgusted with his brother and sister-in-law assuming their child was going to be a monarch someday.
The day of the christening came and the minister asked for the child's names. The Prince Regent had to pronounce the names, for he must approve of them. (His brother wrote him about the names Elizabeth, Augusta, Charlotte, and Georgiana, after the Prince Regent. The Prince Regent told his brother all would be settled at the christening). The Prince Regent proclaimed the child to be named Alexandrina, after her other godfather, the Tsar of Russia. The Duke of Kent spluttered, "that can't be her only name?" The Prince Regent then said, "let the child be named after her mother." The Duke of Kent asked for Georgiana after the Prince Regent, but he said his name could not come after the Emperor's nor the Emperor's after his.
Thus, Alexandrina Victoria became Queen Victoria.