/usr/lib/x86_64-linux-gnu/lorene/C++/Include is in liblorene-dev 0.0.0~cvs20161116+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/lorene/C++/../../../../include/lorene/C++/Include