what are the names of the royal great grandchildren?
['1 Savannah Phillips. Getty Images. Age: 7. ... ', '2 Isla Phillips. Getty Images. Age: 6. ... ', '3 Prince George. Getty Images. Age: 5. ... ', '4 Mia Tindall. Getty Images. Age: 4. ... ', '5 Princess Charlotte. Getty Images. Age: 3. ... ', '6 Prince Louis. Getty Images. ... ', '7 Lena Tindall. Getty Images.']