Who follows Victoria if her sons die first?

If all Queen Victoria's sons died before her, would Kaiser Wilhelm II inherit the British throne?

No. Closer descendants would remain ahead of him, and a broader succession crisis would bring Parliament into the choice, with a British relative such as Louis of Battenberg presented as more acceptable.

Removing Queen Victoria's sons does not place Kaiser Wilhelm II next in line because their descendants and other branches of the family remain. A catastrophe large enough to remove all closer heirs would draw Parliament directly into the settlement. Louis of Battenberg appears in the discussion as a more plausible parliamentary choice because he had become a British subject and served the state. Wilhelm's temperament and existing position as a foreign sovereign would make him a poor fit for Britain's constitutional monarchy. The exchange also shows how a naval officer's citizenship and public service could matter in a dynastic emergency.