In addition to holding titular claims to lordships in Greece, Leonardo was also the lord of Refrancore in Montferrat, Italy, as well as Apice and Tinchiano, which he purchased in 1639.
Upon Leonardo's death, his claims and titles were inherited by his son, Antonio Tocco.
Leonardo V Tocco was the son of Francesco Tocco, the titular Despot of Epirus and Count Palatine of Cephalonia and Zakynthos, and the Italian noblewoman Veronica Malaspina.
[4] The contemporary Neapolitan composer Oddo Savelli Palombara dedicated one of his sonnets, concerning wars between Italians and the Ottomans, to Leonardo.
[5] In 1639, Leonardo expanded his family's holdings in Italy by purchasing the fiefs of Apice and Tinchiano for 43,433 ducats, 1 tarì and 13 grana.