Question: Who helped to develop the national flag that consists of a red field with a white square at is center entre in the ratio of 1:2:1, in the middle of which is featured a stylized, red, 11-pointed maple leaf charged in the centre?
Sentence (from "Flag of Canada"): The flag of Canada, often referred to as the Canadian flag, or unofficially as the Maple Leaf and l'Unifolié (French for "the one-leafed"), is a national flag consisting of a red field with a white square at its centre in the ratio of 1:2:1, in the middle of which is featured a stylized, red, 11-pointed maple leaf charged in the centre.
Relevant evidence: Yes