George Frideric Handel
Handel adopted the spelling "George Frideric Handel" on his naturalization as a British subject, and this spelling is generally used in English speaking countries. The original form of his name (Georg Friedrich Händel) is usually used in Germany, but he is known as "Haendel" in France. There was another composer with a similar name, Handl, who was a Slovene and is more commonly known as Jacobus Gallus. This can be very hard for cataloguers (people trying to make a list of his music)