Xaver Landerer (9 September 1809 – 7 July 1885; Greek: Ξάβερ Λάντερερ) was a writer, medical doctor, physicist, chemist, pharmacist, botanist, and professor.

He wrote a large number of books about chemistry and pharmacology during the modern scientific revolution.

He influenced Anastassios Christomanos, Anastasios Damvergis and Dimitris Orphanides.

Landerer moved to Greece and remained in the country for the next 54 years of his life.

He fought to build up its educational system and include the new nation in the rapidly evolving European scientific community.

By age 26, Landerer became a citizen of the newly founded Kingdom because of the Greek Nationality Act of 1835.

Between 1834 and 1835, Landerer doctor Ioannis Vouros and the director of the Royal Pharmacy Josef Sartori formed a special committee to assemble a pharmaceutical book known as pharmacopoeia.

The book was published in 1837 it was entitled Greek Pharmacopoeia (Ελληνική Φαρμακοποιΐα).

He helped organize the newly founded university along with Konstantinos Negris and Dimitrios Stroumpos.

Greek mathematician Ioannis Papadakis also decided to study at the University of Munich around 1836.

[2][11] By September 1843, the people were unhappy with the foreign monarch chosen to lead the new country.

He also conducted scientific research and continued publishing books worldwide.

He continued writing, conducting research, and occasionally teaching classes until he died at 76 years old in Athens on July 7, 1885.

Pharmacists educated at the University of Athens were required to attend courses in analytical chemistry, physics, mineralogy, zoology, pharmacology, natural history, botany, and the art of prescription.

Finally, students were required to finish one year of work at a pharmacy for their practical skills.

[17] A notable portrait was painted of her by famous Greek painter Ioannis Doukas around 1879.

Landerer's grandson Efthimios became Minister of National Economy and Foreign Affairs.