Tree of consanguinity. Source: Antonino Ganini, IL LEGISTA VERSIFICANTE (Naples, 1752), call no. Italy 221 1752. This curious work translates Justinian's Institutes from Latin prose to Italian verse, probably as a memorization aid for law students.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/29570076@N06">Yale Law Library</a> from New Haven, CT, USA
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/29570076@N06/3794494761/">Arbor consanguinitatis, 1752</a>