Leonardus Schweickhardt

Portrait of an unknown magistrate Leonardus Schweickhardt

Wish Letter with decorative framework with a townscape Jan Hendriksen

Portrait of Leonardus van der Voort Johan Bernard Scheffer

Leonhard Fuchs, German botanist and physician Unknown

Portrait of Theodorus Schrevelius, Rector of the Latin School in Leiden The Netherlands Arnoud van Halen

Portrait of John Lewis Burckhardt at the Age of 24 English School

Portrait of Sheikh Ibrahim, or Johann Ludwig Burckhardt 1817 Henry Salt

Leonhard Euler (1707-1783), Swiss mathematician, 1874 Unknown

Portrait of Sigismund Philo Schelhammer Hendrik Bary

Leonhard Euler (1707-1783), Swiss mathematician, 1835 Unknown

Portrait of the Mathematician Leonard Euler Joseph Friedrich August Darbes

Portrait of Leonhard Golling Lambert Visscher

Schweigen, 1786-99 Henry Fuseli

Portrait of Leonilla, Princess of Sayn-Wittgenstein-Sayn Franz Xaver Winterhalter

Portrait of Margaretha van Leuvenigh, Wife of Bernardus de Bosch Jan Maurits Quinkhard

A Legation before a King, near Him Two Women Standing Leonhard Beck

Portrait A. Heynsius, Professor of Medicine Leiden P. Somerwil

Portrait of Johann Ludwig Burckhardt Richard Westall

Leonard von Eckh, 1527 Barthel Beham

Portrait of Petrus Schaak, Clergyman and Scholar in Amsterdam Jan Maurits Quinkhard

Portrait of Johannes Polyander à Kerckhoven, Professor of Theology in Leiden The Netherlands Arnoud van Halen

Portrait of Mathematician Leonhard Euler in Pensive Pose Anonymous

Portrait of Christian Friedrich Daniel Schubart, 1790 Anonymous

Portrait of Wolf Dietrich von Beichlingen Pieter Schenk I

Portrait of Carolus Leonardi Adriaen Roman I

Portrait of the Lady of Schleinitz (?), 1526 Anonymous

Portrait of Leonilla, Princess of Sayn-Wittgenstein-Sayn Franz Xaver Winterhalter

Leonhard Euler (1707-1783), Swiss mathematician, 1801 Unknown

Matthias Jakob Schleiden Anonymous

Portrait of Sebastian Schelckens, rector at Franeker Jan Luyken

Hero and Leander Lambertus Antonius Claessens

Portrait of Joannes Fredericus Gronovius, Philologist and Jurist, Professor in Leiden The Netherlands Jan Maurits Quinkhard

Portrait of Johann Ludwig von Eckardt, 1794 Anonymous

Laelia anceps schröderiana F. Sander

Italian Landscape Hendrik Willem Schweickhardt

Ivy Millais and Marie Leonhard, actresses Foulsham and Banfield