To be specific
"Many people were involved in developing the Invictus Games to what they are today
US Gen Gary Cheek and John Wordin developed the Warrior Games, which is the template for a huge raft of similar incarnations of the Invictus Games all around the world.
Martin Colclough (OBE and Help for Heroes UK Charity) took a team of disabled UK military over to the Warrior Games in 2012. It was Martin who invited Harry to go and watch the UK when the UK competed again 2013 in Colorado.
The London Committee (Paralympics) used the Warrior Games template to create the first incarnation of Invictus.
The Invictus Foundation was created under the umbrella of the Royal Foundation and named Founders were William, Harry and Catherine, none of them created the Games.
Harry joined the Invictus Board as its Patron. When the Games were being further developed, it’s no doubt that Harry had some small input into the discussions, but it’s laughable to say he created the Invictus Games.
Teams of people created and refined the Invictus Games to the well known entity it is now.
Martin Colclough is often over looked when titled people are mentioned but he did a great deal for wounded Military and Invictus in particular."
From a Brit who knows.