Rosenzweig was born in
Eisenstadt in the
Austrian Empire. He served first under Kaiser
Franz Joseph I of Austria-Hungary and then under Emperor
Maximilian I of Mexico. He was married to Hungarian Princess Catarina Radzivil de Atavia, who was a lady in the court of Empress
Carlota of Mexico. During his service to the Emperor of Mexico, he traced and built the current famous avenue
Paseo de la Reforma, in that time called
Paseo de la Emperatriz ("Promenade of the Empress"); and later renamed. After the fall of the
Second Mexican Empire, during the post-Maximilian era, he built several other structures such as the Necaxa Ridge, which was
Mexico City first source of electricity. ==References==