1. Paoluccio Formosa, married 1630 Matrice Gozo to
Maria Xiberras, with issue.
1.1. Giuseppe Formosa, married 1656 Matrice Gozo to Caterina Mizzi, with issue.
1.1.1. Andrea Formosa, married 1677 Valletta to Marietta Bugeja, with issue.
1.1.1.1. Rosa Formosa, married 1702 Valletta to Gio Maria Gatt.
1.1.2. Clemente Formosa, married 1710 Matrice Gozo to Vincenza Formosa, with issue.
1.1.3. Gio Maria Formosa, married 1729 Matrice Gozo to Maria Pace, with issue.
1.1.3.1. Giuseppe Formosa, married 1786 Matrice Gozo to Maria de Manueli, with issue.
1.1.3.2. Angela Formosa, married 1763 to Pietro Attard.
1.1.3.3. Grazia Formosa, married 1756 Zebbug Gozo to
Michele Zahra.
1.2. Arcangelo Formosa, married 1662 Matrice Gozo to Maruzza Mongibino, with issue.
1.3. Antonia Formosa, married 1660 Matrice Gozo to Francesco Galea.
1.4. Alessandro Formosa, married 1666 (
Notary Tomaso Debono) to
Speranza Cauchi, with issue.
1.4.1. Gio Battista Formosa, married 1724 Valletta to Clemenza Cassar, with issue.
1.4.1.1. Giuseppe Formosa, married 1754 Gharb, Gozo to Maria Pace, with issue.
1.4.1.1.1. Giovanni Formosa, married 1780 Rabat Gozo to Angela Bugeja, with issue.
1.4.1.1.1.1. Giuseppe Formosa, married 1810 Gharb Gozo to Maria Galea, with issue.
1.4.1.1.1.1.1. Carmelo Formosa, married 1866 Birkirkara to Filomena Caruana, with issue.
1.4.1.1.1.1.1.1. Fortunata Formosa, married 1897 Floriana to Vincenzo Zammit Tabona.
1.4.1.1.1.1.1.2. Aloisio Formosa, married to Vincenza Attard, with issue.
1.4.1.1.1.1.1.2.1. Maria Gatt, (1913-2001), married to Giuseppe Gatt.
1.4.1.1.1.1.1.2.2. Francis Xavier Formosa, married to Carmela Vinci, with issue.
1.4.1.1.1.1.1.2.2.1. Peter Formosa, (1954-.
1.4.1.1.1.1.1.2.2.2. John Formosa, (1955-.
1.4.1.1.1.1.1.2.2.3. Eugenie Formosa, (1958-.
1.4.1.1.1.1.1.2.2.4. Mark Formosa, (1960-.
1.4.1.1.1.1.1.2.3. Giovanni Formosa.
1.4.1.1.1.1.1.2.4. Carmelo Formosa.
1.4.1.1.1.1.1.2.5. Phyllis Formosa, (1920-2015), married to Mario Bonello.
1.4.1.1.1.1.1.3. Cecilia Formosa, married 1887 Floriana to Guglielmo Ellul Belizzi.
1.4.1.1.1.1.2. Michele Formosa, married 1831 Birkirkara to Elena Catania.
1.4.1.1.1.1.3. Aloisio Formosa, married 1843 Valletta to Sapienza Cuschieri.
1.4.1.1.1.1.4. Concetta Anna Formosa, (1813-.
1.4.1.1.1.1.5. Anna Maria Formosa, (1814-.
1.4.1.1.1.1.6. Maria Concetta Formosa, (1817-.
1.4.1.1.1.1.7. Carmela Formosa, (1817-.
1.4.1.1.1.1.8. Gaetana Formosa, (1817-1820), d.inf.
1.4.1.1.1.1.9. Giuseppe Formosa, (1820 -.
1.4.1.1.1.1.10. Giovanna Formosa, (1822-1829), dunm.
1.4.1.1.1.1.11. Carmela Formosa, (1829-1842).
1.4.1.1.1.2. Maria Formosa, married 1815 Gharb Gozo to Gabriele Farrugia.
2. Giacomo Formosa, married 1633 Matrice Gozo to Domenica Veronica Mizzi, (See above), with issue.
2.1. Gio Paolo Formosa, married 1669 Matrice Gozo to Gioannella Mizzi.
2.2. Carlo Formosa, married 1663 Matrice Gozo to Veronica Mintuf.
2.3. Giovanni Formosa, married 1672 to
Maruzza Abela, with issue.
2.3.1. Guilio Formosa, married 1699 Matrice Gozo to Flaminea Vella.
2.3.2. Ignazio Formosa, married 1705 Matrice Gozo to Rosa Zammit., with issue.
2.3.2.1. Saverio Formosa, married 1740 Matrice Gozo to Maria Mizzi, with issue.
2.3.2.1.1. Antonia Formosa, married 1763 Matrice Gozo to Chco. Placido Mizzi.
2.3.2.1.2. Deodata Formosa, married 1774 Rabat Gozo to Giuseppe Mizzi.
2.3.2.1.3. Mro Giuseppe Formosa, married 1809 Xaghra Gozo to Maria Rapa.
2.3.2.1.4. Modesta Formosa, married 1788 Valletta to Judge Saverio Ignazio Bonavita.
2.3.2.2. Elizabetta Formosa, married 1749 Matrice Gozo to Giuseppe Cutajar.
2.3.2.3.1. Antonia Formosa de Ribera, married 1754 Matrice Gozo to Felice Muscat Audibert, with issue.
2.3.2.3.1.1. Antonio Muscat de Ribera, married (1) 1787 Cospicua to Vincenza Guiliano, married (2) 1818 Cospicua to Maria Zammit, with issue.
2.3.1.1.1. (Second marriage) Vincenza Muscat de Ribera, married 1838 Cospicua to Giuseppe Ciaja.
2.3.1.2. Gio Battista Muscat de Ribera, married 1785 Cospicua to Caterina Grech, with issue.
2.3.1.2.1. Giuseppe Muscat de Ribera, married 1808 Cospicua to Maria Galea, with issue.
2.3.1.2.1.1. Michele Muscat de Ribera, married 1839 Cospicua to Maddalena Attard.
2.3.1.3. Giuseppe Muscat de Ribera, married 1788 Cospicua to Teresa Xiriha.
2.3.1.4. Gaetana Muscat de Ribera, married (1) 1779 Cospicua to Giuseppe Remolo, married (2) 1780 Cospicua to Gio Maria Ciangura.
2.3.3. Gio Battista Formosa, married 1706 Matrice Gozo to Ubaldesca Cassar.
2.3.4. Vincenza Formosa, married 1710 Matrice Gozo to Clemente Formosa.