The Board
Cosima Rösler, President
Hi everyone! My name is Cosima Rösler, and I am a second year Security Studies student. Since joining Custodia in 2025, the association has helped me meet amazing people, grow as a person and has given me the opportunity to collect unforgettable memories. As President, I want to give others the opportunity to also profit from Custodia’s amazing community and the experiences we provide. For the 2026/2027 academic year, my goal as President is to create an environment within Custodia where everyone feels welcomed, heard and seen. In the upcoming year, I want to see Custodia and our members thrive.
Contact me via chair@custodiathehague.com!
Ava Walraven, Vice President & Head of External Affairs
Hello! My name is Ava Walraven, currently a 3rd year Security Studies, and I will take over as Vice President and Head of External Affairs for Board IX. It will be my goal this year to continue the amazing work done before me, and find new ways for our members to connect their academic interests with career opportunities. I will focus on strengthening existing and building new partnerships, organizing interactive events in collaboration with companies, and finding ways to connect our members with professionals. In these tasks, I will be supported by my amazing Acquisition Committee.
If you have any ideas for potential partners, or questions to ask me, feel free to send me an email via externalaffairs@custodiathehague.com!
Johanna Mehnert, Treasurer
Hi everyone, I am Johanna, a second-year security studies student. After my committee year last year, I am excited to take on more responsibility as the Treasurer of Board IX. My goal for this year is to update the bookkeeping system and, of course, make sure that the Custodia budget is well allocated between committees and project groups, so everyone in Custodia who wants to create something has the opportunity to.
Reach me at treasurer@custodiathehague.com!
Clara Vanpayrs, Head of Internal Affairs
Hi everyone! My name is Clara Vanparys and I am the head of internal affairs for board IX. I’m excited to work with the rest of the board in this coming year to make the association better and create great memories and events for all members! I am currently doing the Crisis and Security Management master with a specialisation in Terrorism and Political Violence.
I will be working with our committees to create fun events for members and non-members. This year I want to ensure the committees are well supported so they can fulfill their roles to the fullest potential! I hope to see you all at events during the year!
You can contact me at internalaffairs@custodiathehague.com!
Alexandra Collij, Head of Master Affairs
Hi there! My name is Alexandra Collij, and I am the Head of Master Affairs for Board IX of L.S.A. Custodia. Alongside my board activities, I am pursuing an MSc in Crisis and Security Management with a specialisation in Governance of Crisis.
As Head of Master Affairs, I represent our master students and aim to foster a welcoming and engaging community in which students can connect, share experiences, and make the most of their time at university. Throughout the year, I intend to organise a variety of events centred around the three pillars of academic-related, social, and career-oriented activities. Through these events, I hope to bridge the gap between academia and the professional field, bring our master students closer together, and introduce students to the many opportunities available beyond their studies.
I look forward to meeting you all and making this an engaging and memorable year together! Should you have any ideas, suggestions, or questions you would like to (pro)pose, please feel free to reach out to me via masters@custodiathehague.com!
Previous Boards
Board VIII
2025-2026
From left to right: Laura Schrama (Head of Master Affairs), Mara (Head of Internal Affairs), Lennart Noah Boes (Secretary), Filip Krčmář (President), Csillag Virág Sánta (Treasurer), Mika Vjaliha (Head of External Affairs), Gwen Billekens (Head of Strategic and Academic Affairs)
Board VII
2024-2025
Back row from left to right: Emiel van der Sloot (Secretary), Niek Schrijver (Treasurer and Vice President), Sven Jongejan (President) Malaury Vidon (Head of Master Affairs [until Feb 2025] & Head of Strategic Affairs [from Apr 2025])
Front row from left to right: Watey Diep (Head of External Affairs), Marissa Blanker (Head of Master Affairs [from Feb 2025]), Cathy Zaunbrecher (Head of Internal Affairs),
Board VI
2023-2024
From left to right: Maaike Buitelaar (Head of Internal Affairs), Renske Veldman (Secretary), Ryan Bosman (Treasurer and Vice President), Sybren van den Berg (Head of External Affairs), Siddharth Jethwani (Head of Master Affairs), Alexandra Hattink (President)
Board V
2022-2023
From left to right: Britt van Hanegem (Head of Internal Affairs), Stijn Willem van 't Land (Head of Master Affairs 1st semester,), Lois Kips (President), Wessel Jasper (Treasurer), Michelle Plug (Secretary), Thomas van Noort (Head of External Affairs)
Not in the picture: Evguenia Roussel (Head of Master Affairs, 2nd semester)
Board IV
2021-2022
Back row from left to right: Paul Holleman (Head of Master Affairs), Marnix Tissing (Treasurer), Michelle Plug (Secretary)
Front row from left to right: Barbara Krakovska (Head of External Affairs), Yasmina Mahali (President) & Indra Schieferbein (Head of Internal Affairs)
Board III
2020-2021
Back row from left to right: Nadine Eijsackers (Secretary), Nouri Horn (Head of External Affairs), Marnix Tissing (Treasurer), Axel Dol (Head of Internal Affairs)
Front row from left to right: Marleen Valkenburg (Head of Master Affairs), Martijn Bergmann (President)
Board II
2019-2020
From left to right: Michael Marinelli (Head of Master Affairs), Isabel Jansen (Head of Internal Affairs), Max Kroes (Secretary), Nadine Louissen (President), Luc Meijer (Treasurer), Sterre Brinkman (Head of External Affairs)
Board I
2018-2019
From left to right: Jelmer Pijpers (Head of Master Affairs), Nynke de Jong (Head of External Affairs), Luc Meijer (Treasurer), Nadine Louissen (President), Max Kroes (Head of Internal Affairs), Ineke Huitema (Secretary)
