Ladislaus I (?læd?s?l??s) or Ladislas In (Biography) Saint. 1040?95, king of Hungary (1077?95). He extended his country’s boundaries and suppressed paganism. Feast day: June 27Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014