Mark Klaassen has published a blog on EULawAnalysis on the judgment of the Court of Justice of the EU in the case K. & B. of 7 November 2018.

He could also have written a paper for his honours assignment,

Archaeologists from Leiden University find what is clearly an earth wall and ditch structure in the woods near Ermelo. They suspect it may be the remains of a Roman military camp, but as yet have no conclusive evidence. Will they be able to solve the puzzle?

On Friday 26 August 2022, the Dutch cabinet presented its new asylum agreement. According to Assistant Professor Mark Klaassen, the new agreement is barely legal.

Dementia is widely considered a progressive condition associated with changes in cognitive capacities, which promotes the idea that people with dementia need to anticipate end-of-life care preferences. There is a growing body of interventions meant to support advance care planning (ACP) for people with…

Dr. Moritz Jesse, associate professor of European Law at the Europa Institute of the University of Leiden, spoke at the Social integration in EU law: Contents, limits and functions of an elusive notion – Seminar, which was organized as a part of the MOVES – Free Movement of Workers & Social Security…

Papers written on the occasion of the 30th anniversary of the institute of Prehistory, Volume II.

A new Graduiertenkolleg opens at the LMU.

On 12th July 2016, Wim Voermans spoke in the ZDF-heute documentary 'Glamour, Gold und die Liebe: Europas Königshäuser'

In Spring next year, a new and international team of archaeologists, historians, and education experts will start a collaborative project on the archaeology of Molise. The project is generously funded by l’Istituto Regionale per gli Studi Storici del Molise “Vincenzo Cuoco” (IRESMO).

Research on the Greek and Roman times often focuses on important leaders, writers or politicians. However, Patricia Kret is more interested in the normal people living in these times. Her research focuses on amulets which were often used, for example to cure diseases. Why did people believe so strongly…

Through the Byvanck Fund, Classical Mediterranean archaeologist Tymon de Haas has received a grant of €6,350 for his research on the ecological impact of Roman expansion. He will use this grant to investigate the traces of one of the oldest and best-preserved Roman cadastres, situated in the former…

On Tuesday, December 9 2025, Prof. Koen Ottenheyn delivered the last Austria Centre lunch talk of 2025. Prof. Ottenheyn serves as a professor of architectural history at Utrecht University, The Netherlands, and is a member of the Royal Dutch Academy of Sciences and the Academic Curatorium which advises…

On 17 November 2023, Dr Mark Klaassen participated in a seminar commemorating the 20th anniversary of the EU Family Reunification Directive. The event, initiated by Dr Karen Geertsema and Professor Tineke Strik, was hosted by the Centre for Migration Law at Radboud University in Nijmegen.

PhD candidate Layla van Wieringen examined how extremist beliefs are passed on within households. In her dissertation ‘Rotten Trees, Bad Apples? Understanding the Intergenerational Transmission of Extremism’, she reveals a reality that media and politics rarely address.

This five year research project aimed to investigate the role of minor central places in the economy of Roman Central Italy.

This research aims to study the practice of cremation in Alexandria and Graeco-Roman Egypt, through the examination of its cinerary urns.

In my research, I used a comparative wood anatomical approach to address wood evolution of the (largely) tropical flowering plant families Apocynaceae and Sapotaceae.

PhD defence

Researchers have used AI to reconstruct the rules of a board game carved into a stone found in the Dutch city of Heerlen. The team concludes that this type of game was played several centuries earlier than previously assumed.

She bridges the gap between research and practice, has excellent research skills and is pleasant to work with: these words of praise were lavished on Sabine van der Asdonk (29) when she won the Gratama Science Prize 2021 in June. In this interview she explains more about her research into vulnerable…

Did your grandfather or grandmother also study in Leiden? And your parents, uncles, aunts, brothers, sisters...?

Peter Rodrigues contributed a chapter 'Human Rights and the Best Interests of the Child in European Family Reunification Law' in the book by Bergamini E., Ragni C. (Eds.), Fundamental Rights and Best Interests of the Child in Transnational Families.

Mark Klaassen presenter at the Reuniting Families: From Access to Integration event organized by the EU office of the Red Cross in Brussels.

The fragmentary is everywhere: we encounter fragments in social media (Tiktok, Twitter), in personal memories from our childhood, and in traditions from our cultural heritage.

The Archaeology of Imperial Landscapes examines the transformation of rural landscapes and societies that formed the backbone of ancient empires in the Near East and Mediterranean. Through a comparative approach to archaeological data, it analyses the patterns of transformation in widely differing imperial…

This research cluster aims to analyse and interpret the formation and transmission of Graeco-Roman culture by exploring the relationships between cultural products (texts, objects, practices) and their societal and historical contexts.

The hinterland of important centres like Petra (Southern Jordan) can provide essential information that contribute to the understanding of their rise, expansion and decline.

A delegation of the Child Law Department has attended the World congress on family law and children’s rights in Dublin, from 4-7 June. This congress organised once in every four years was hosted by prof. Ursula Kilkelly (University College Cork). Over 600 people attended the congress; professionals…

An Investigation into the role of copper-alloy craft production in the early medieval economy of northwest Europe.

Debate

‘Visibility and secrecy are both valuable tactics and should not be antagonized in LGBT movements, ’ says Jingshu Zhu. Zhu will defend her dissertation on Wednesday 21 February. Time for a short interview with the PhD candidate.

Most families were utterly overwhelmed when they found out that their son or daughter had suddenly left for Syria, that is what Daan Weggemans, Marieke van der Zwan and Marieke Liem observe in their research on family members of Dutch jihadists.

This project aims to integrate three of the largest survey databases in the Mediterranean to study the impact of the megalopolis Rome on its direct hinterland.

This monograph by dr. Kim Beerden compares Greek divination to divinatory practices in Neo-Assyrian Mesopotamia and Republican Rome.

During the ‘intelligent lockdown’ in the Netherlands this spring, the respondents in a Leiden study reported a mild increase in their stress levels. This extra stress could have a negative effect on families, particularly if parents already had psychological problems before the corona crisis.

Although domestic violence often affects multiple family members, parents and children are usually treated separately for their traumatic experiences. In collaboration with women's shelter Rosa Manus, forensic partner the Waag, the municipality of Leiden and their colleagues from LUBEC (Leiden University…

The Van Vollenhoven Institute for Law, Governance and Society (VVI) and the Royal Netherlands Institute of Southeast Asian and Caribbean Studies (KITLV) organize a two-day workshop on Indonesian Family Law on 4 and 5 October.

Lecturers Zsuzsika Sjoerds and Sebo Uithol have been awarded a 100,000-euro Dutch National Education Institute (NKO) Scale-Up Grant for their ‘Family Dinner’ app. The app helps students develop critical reasoning skills by identifying fallacies and prejudices during a simulated family meal.