The thirty-nine statues in the niches of the nave, transepts and tribune, depict saints who founded religious orders or institutes. The first statue was added in 1706, the last in 1954.
Moving clockwise round the church:
Nave: Left Side
St Peter of Alcantara by Francisco Vergara Bartual
St Lucia Filippini by Silvio Silva
St Peter of Alcántara (1499-1562) by Francisco Vergara Bartual, 1753. Founder of the Alcantarini. St Lucy Filippini (1672-1732) by Silvio Silva, 1949. Founder of the 'Filippini Sisters'.
St Camillus de Lellis by Pietro Pacilli
St Louis de Montfort by Giacomo Parisini
St Camillus de Lellis (1550-1614) by Pietro Pacilli, 1753. Founder of the Camillians. St Louis de Montfort (1673-1716) by Giacomo Parisini, 1948. Founder of the Company of Mary.
St Ignatius of Loyola by Camillo Rusconi
St Anthony Zaccaria by Cesare Aureli
St Ignatius of Loyola (1491-1556) by Camillo Rusconi, 1733. Founder of the Society of Jesus. St Anthony Zaccaria (1502-39) by Cesare Aureli, 1909. Founder of the Barnabites.
St Francis of Paola by Giovanni Battista Maini
St Peter Fourier by Louis Noel Nicoli
St Francis of Paola (1416-1507) by Giovanni Battista Maini, 1732. Founder of the Minim friars. St Peter Fourier (1565-1640) by Louis Noel Nicoli, 1899. Founder of the Congregation of Notre Dame.
Left Transept
St Juliana Falconieri by Paolo Campi
St Angela Merici by Pietro Galli
St Juliana Falconieri (1270-1341) by Paolo Campi, 1740. Founder of the Servite Tertiaries. St Angela Merici (1474-1550) by Pietro Galli, 1866. Founder of the Ursulines.
St Norbert by Pietro Bracci
St William by Giuseppe Prinzi
St Norbert of Xanten (1080-1134) by Pietro Bracci, 1767. Founder of the 'Norbertines'. St William of Vercelli (1085-1142) by Giuseppe Prinzi, 1878. Founder of the 'Williamites'.
St Peter Nolasco by Paolo Campi
St Louise de Marillac by Antonio Berti
St Peter Nolasco (1189-1256) by Paolo Campi, 1742. Founder of the 'Mercedarians'. St Louise de Marillac (1591-1660) by Antonio Berti, 1954. Founder of the Daughters of Charity.
St John of God by Filippo della Valle
St Mary Euphrasia Pellettier by Giovanni Niccolini
St John of God (1495-1550) by Filippo Della Valle, 1745. Founder of the Brothers Hospitallers. St Euphrasia Pelletier (1796-1868) by Giovanni Niccolini, 1940. Founder of the Sisters of the Good Shepherd.
Tribune: Left Side
St Francis of Assisi by Carlo Monaldi
St Alphonsus de Liguori by Pietro Tenerani
St Francis of Assisi (c. 1181-1226) by Carlo Monaldi, 1727. Founder of the 'Franciscans'. St Alphonsus de Liguori (1696-1787) by Pietro Tenerani, 1839. Founder of the 'Redemptorists'.
St Benedict by Antonio Montauti
St Frances of Rome by Pietro Galli
St Benedict (480-547) by Antonio Montauti, 1735. Founder of the 'Benedictines'. St Frances of Rome (1384-1440) by Pietro Galli, 1850. [St Frances was not actually the founder of an order, but only of a Roman nunnery of Benedictine oblates.
Tribune: Right Side
Prophet Elijah by Agostino Cornacchini
St Francis de Sales by Adamo Tadolini
Prophet Elijah by Agostino Cornacchini, 1727. Putative founder of the Carmelites. St Francis de Sales (1567-1622) by Adamo Tadolini, 1845. Founder of the 'Visitationists'.
St Dominic by Pierre Le Gros the Younger
St Francis Caracciolo
St Dominic (1170-1221) by Pierre Le Gros the Younger, 1706. Founder of the 'Dominicans'. St Francis Caracciolo (1563-1608) by Francesco Labourer & Innocenzo Fraccaroli, 1834. Founder of the Minor Clerks Regular.
Right Transept
St Cajetan Thiene by Carlo Monaldi
St Frances Cabrini by Enrico Tadolini
St Cajetan (1480-1547 by Carlo Monaldi, 1738. Founder of the 'Theatines'. St Francesca Xavier Cabrini (1850-1917) by Enrico Tadolini, 1947. Founder of the Missionary Sisters of the Sacred Heart.
St. Jerome Emiliani by Pietro Bracci
St Joan Thouret
St Jerome Emiliani (1486-1537) by Pietro Bracci, 1756. Founder of the 'Somaschi Fathers'. St Joan Thouret (1765-1826) by Enrico & Carlo Quattrini, 1949. Founder of the Sisters of Charity.
St Joseph Calasanz by Innocenzo Spinazzi
St Bonfilius Monaldi by Cesare Aureli
St Joseph Calasanz (1557-1648) by Innocenzo Spinazzi, 1755. Founder of the 'Piarists'. St Bonfilius Monaldi (c. 1040 - c. 1115) by Cesare Aureli, 1906. Co-founder of the Servites.
St Bruno by Michelangelo Slodtz
St Paul of the Cross by Ignazio Jacometti
St Bruno (c. 1030 - 1101) by Michelangelo Slodtz, 1744. Founder of the 'Carthusians'. St Paul of the Cross (1694-1775) by Ignazio Jacometti, 1876. Founder of the 'Passionists'.
Nave: Right Side
St John Bosco by Pietro Canonica
St John Bosco (1815-1888) by Pietro Canonica, 1936. Founder of the 'Salesians'.
St Philip Neri by Giovanni Battista Maini
St Philip Neri (1515-95) by Giovanni Battista Maini, 1734. Founder of the 'Oratorians'. St John Baptist de la Salle (1651-1719) by Cesare Aureli, 1904. Founder of the Brothers of the Christian Schools.
St Vincent de Paul by Pietro Bracci
St John Eudes by Silvio Silva
St Vincent de Paul (1581-1660) by Pietro Bracci, 1754. Founder of the 'Lazarists'. St John Eudes (1601-80) by Silvio Silva, 1932. Founder of the Congregation of Jesus and Mary.
St Teresa of Avila by Filippo della Valle
St Sofia Maddalena Barat by Enrico Quattrini
St Teresa of Avila (1515-82) by Filippo Della Valle, 1754. Founder of the Discalced Carmelites. St Madeleine Sophie Barat (1779-1865) by Enrico Quattrini, 1934. Founder of the Society of the Sacred Heart.