Commentary Inf XXV 151

Francesco de' Cavalcanti (the identification is not certain) who, murdered by inhabitants of the town of Gaville, in the upper Arno valley, was avenged by his relations.

 

ENDNOTE: TABLE OF METAMORPHOSES, INFERNO XXIV & XXV

Vanni Fucci (XXIV.97-120) serpent bites neck and shoulders from rear burns to ashes and returns in same nature immediately resurrection three comparisons:
o/i
phoenix
epileptic
SACRILEGIO: theft of church property
Agnello & Cianfa (XXV.49-78) six-footed serpent bites head from in front turn into a new creature of shared nature mutation three comparisons:
ivy on tree
hot waxes blending
burning parchment
PECULATO: theft of goods commonly held
Buoso & Francesco (XXV.79-141) four-footed serpent bites belly from front exchange their natures transmutation three comparisons:
lizard in path
man in sleep/fever
snail's horns
PLAGIO: theft from fellow men

For the distinctions made in the column at the far right, see Thomas Aquinas, Summa Theol. II, II, q. 66, a. 6: on aggravated theft, as cited by Filomusi Guelfi (Filo.1911.1), pp. 199-206.