Man pages matching name libtoolize in section 1:

libtoolize.1.en	debian 10 / libtool
libtoolize.1.ja	debian 10 / manpages-ja
libtoolize.1.en	debian 11 / libtool
libtoolize.1.ja	debian 11 / manpages-ja
libtoolize.1.en	debian 12 / libtool
libtoolize.1.en	debian 13 / libtool