/usr/lib/perl5/Gtk2/Gdk/Event/ is in libgtk2-perl-doc 2:1.249-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/perl5/Gtk2/Gdk/Event/Button.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Client.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Configure.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Crossing.pod
/usr/lib/perl5/Gtk2/Gdk/Event/DND.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Expose.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Focus.pod
/usr/lib/perl5/Gtk2/Gdk/Event/GrabBroken.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Key.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Motion.pod
/usr/lib/perl5/Gtk2/Gdk/Event/NoExpose.pod
/usr/lib/perl5/Gtk2/Gdk/Event/OwnerChange.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Property.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Proximity.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Scroll.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Selection.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Setting.pod
/usr/lib/perl5/Gtk2/Gdk/Event/Visibility.pod
/usr/lib/perl5/Gtk2/Gdk/Event/WindowState.pod