Albert Frederick
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Albert Frederick Hohenzollern (1553-1618) was duke of Prussia from 1568 until his death. He was the second and last Prussian duke of the Ansbach branch of the Hohenzollern family. At his death the dukedom passed to the Hohenzollern rulers of Brandenburg, combining the two territories under a single dynasty.

The original article can be found at: http://en.wikipedia.org/wiki/Albert_Frederick.
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