Complex sentence: Zachariewicz was a graduate of the Royal Polytechnic Institute in Vienna, now the Vienna University of Technology, and a professor and rector (1881--1882) of Lviv Polytechnic.
Split into simpler sentences: Zachariewicz was a graduate of the Royal Polytechnic Institute in Vienna, now the Vienna University of Technology. Professor and rector (1881--1882) of Lviv Polytechnic.