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Board VI


Alexandra Hattink



Renske Veldman



Ryan Bosman

Treasurer & Vice President


Maaike Buitelaar

Head of Internal Affairs

Hi everyone, welcome to this board page. My name is Alexandra, I am 20 years old and currently in my last year of Security Studies. With Custodia I have made many amazing memories and hope to offer that to many others as well.
Over the course of the year I would like to increase our network and capabilities so more students can benefit from what we have to offer. Though most of all I hope to build a community that will last. Engaging students with each other and the world beyond our campus.

Hello! I am Renske, I am a 21 year old second year student of Security Studies. This year I will be the secretary for the board of Custodia. Last year, I was on the social committee and I have very fond memories of events like karaoke nights and borrels we hosted as a committee and all the lovely people I met there. As board member I hope to contribute to a positive environment where we can organise many more great events, I hope to meet you at one soon!

Hi everyone, I am honoured to introduce myself to you as the Treasurer and Vice President of Board VI. My name is Ryan Bosman and I am currently studying MSc Crisis and Security Management. This represents my first year as part of Custodia, though in the short time I have been here I have had the please to meet so many new and exciting people. I am really looking forward with the year to come and I hope to be able provide everyone, together with the rest of the board, an amazing year. Please don’t hesitate to reach out to me should you ever have any questions and I look forward to seeing you all at our events.

Hello everyone, I am going to be the head of internal affairs for the coming year. My name is Maaike Buitelaar and I am currently following the master Crisis and Security management with a specialization in War and Peace. I have been an active member of L.S.A Custodia for the past three years and am excited to help make everyone’s student times as memorable as possible. I can’t wait to see our members at the events. If anyone has any questions or suggestions, please do not hesitate to let me know!

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Siddharth Jethwani

Head of Master Affairs

Hey everyone! My name is Siddharth Jethwani, better known as Sid, and I am the 6th Head of Master Affairs at LSA Custodia. This is my first year on the association but I bring loads of experience with me from previous positions at other universities. 

During the coming year, without falling short on the other activities we are known to do, I hope to channel my focus on career related activities for our members. If you have any questions, suggestions or ideas, don’t hesitate to reach out to me via See you around :)

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Sybren van den Berg

Head of External Affairs

Hello! I'm Sybren van den Berg, the go-to person for all things related to external affairs at our association. My role is all about building and nurturing relationships with external partners, including businesses and other associations. It's a dynamic role that involves a lot of networking and collaboration.

My goals? I aim to establish strong connections with industry leaders and peer organizations, creating opportunities for our members to engage in meaningful and career-enhancing experiences. I'm also responsible for organizing study-related events at these external venues, ensuring that our members have access to the latest insights and developments in our field.

I'm excited to meet everyone and am always open for a chat. Feel free to reach out to me anytime at – let's connect and explore new possibilities together!

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Previous Boards

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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)

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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)

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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)




The second board of L.S.A. Custodia took over the duties of the first board in May 2019 and

further expanded L.S.A. Custodia in terms of activities, committees and external outreach.

One of the proud moments during this board year was the trip to Kiev, Ukraine – which was

the first ever trip of our study association. During our board term, we saw the association

grow and we are proud of what we have accomplished, even though the pandemic made the

final months of our term quite the challenge.

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).




The first board of L.S.A. Custodia built upon the foundations laid down by a group of

enthusiastic students to establish a study association for the bachelor Security Studies and

the master Crisis and Security Management. In May 2018, L.S.A. Custodia was officially

established and the first board laid down the foundations for the years to come, officially

registering L.S.A. Custodia as an association at the Chamber of Commerce in March 2019.

From left to right: Jelmer Pijpers (Head of Master Affairs), Nynke de Jong (Head of External

Affair), Luc Meijer (Treasurer), Nadine Louissen (President), Max Kroes (Head of Internal

Affairs), Ineke Huitema (Secretary)





Internal Affairs

External Affairs

Master Affairs

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