During (and to some extent after) WWI, certain things were renamed to remove connection with the suddenly unpopular Germans.
The British Royal family was renamed Windsor, German Gardens was renamed Belgian Gardens.
German shepherds were dubbed Alsatians.
German sausage took various new names… Devon, Strasbourg, luncheon meat. Where I grew up (and, it seems, only where I grew up) it was called Windsor sausage. I tried a joke about Princess Eugenie’s hat based on this term but it fell rather flat because no one in the audience had heard of Windsor sausage.
Any other examples of deGermanisation?