This study demonstrates that according to the taxonomy and diagnostics of Rudin (1988), Czech ranks among the non-Multiple-WH-Fronting Languages analysed in terms of the Split CP Hypothesis. The study then concentrates on Superiority effects providing data from corpus research in order to compare the frequency of a variety of attested orderings within groups of WH elements. The hierarchies discussed in the study are (a) The Function/Case Hierarchy, (b) The Category/Size Sequence and (c) The Animacy Hierarchy. The data collected and grouped according to types of WH elements show that Czech demonstrates a statistically relevant preference to keep the formal hierarchies (a/b), but no statistically relevant data are obtained for the Animacy Hierarchy. The study compares the multiple WH structures with the structures containing coordinated WHs, so as to demonstrate the unexplained restriction on Adverbial positions in the left periphery of the Czech clause.