Across almost 1000 years of royal history, there have been several figures who have played a key role in growing the family's popularity and influence.
While several names could claim the top spot, Lord Louis Mountbatten was an essential player and has been remembered in the names of many current royals.
Lord Louis was born as Prince Louis of Battenberg and was a grandson of Queen Victoria. He is widely credited as being a 'secret weapon' for the Royal Family and served as a mentor for his godson, King Charles III.This bond was very strong and it saw King Charles give his first son 'Louis' as a middle name.
When the time came, Prince William carried on the tradition by using it as Prince George's third name and as Prince Louis' first name.
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