You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Princess Christina Margarethe of Hesse, was the eldest daughter of Prince Christoph of Hesse, was the fifth son of Prince Frederick Charles of Hesse and Princess Margaret of Prussia, he was a German SS officer killed accidentally, during which historic event?" whose answer is World War II.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Prince Christoph of Hesse death historic event
Useful Output:

Doc 1: His mother was a German Princess from the House of Hesse, while all four of his sisters wed German Princes and Dukes.
Doc 2: Princess Sophie meanwhile was the first of the children to marry. She married Prince Christoph of Hesse in 1930, another great-grandson of Queen Victoria.
Doc 3: The funeral of Prince Phillip, Duke of Edinburgh on the 17th April 2021 was an altogether quieter affair due to the global pandemic which hasn't
Doc 4: Prince Friedrich of Hesse and by Rhine (Friedrich Wilhelm August Victor Leopold Ludwig; October 7, 1870 – May 29, 1873) was the haemophiliac
Doc 5: the text in this section is copied from an article in Wikipedia. Prince Christoph Ernst August of Hesse (14 May 1901 – 7 October 1943) was a