[2] He was the eldest son of well-known architect, Johann Claudius von Lasaulx (1781–1848) and his wife, Anna Maria Müller (1781–1855).
After finishing his studies at the university, he spent the next four years traveling around Austria, Italy, Greece, and Palestine; visiting all the most important places from history.
His trip to Athens was made as part of the party of Prince Otto of Wittelsbach, who had just been made King of the Hellenes Returning to Germany, he received his doctorate from Kiel in 1835 with the dissertation De mortis dominatu in veteres, commentatio theologica-philosophica, and was subsequently appointed to be docent of classical philology at the University of Würzburg.
His, Kritische Bemerkungen über die Kölner Sache (Critical Remarks about the Cologne Matter), was a controversial attack on the Prussians in general and diplomat Josias von Bunsen in particular.
He became involved in political matters, which resulted in the dismissal of Minister Abel in 1847, this made heads of the University happy, but Ludwig I quite upset.