Counsel, Allen & Overy LLP
Marnix is a Dutch attorney specialising in international commercial arbitration and litigation. He has a broad range of experience in cross-border high-value disputes, including in ICC, NAI and UNCITRAL arbitration proceedings (under Dutch, English and Australian law) and in international mediation proceedings. He was appointed to the Arbitration pool of CAfA in January 2020.
Marnix acts on complex cases in the fields of M&A, construction, international trade, insurance and art. Since 2009, Marnix has advised one of the world’s largest art brokers on various commercial disputes (concerning sale of goods, title, provenance, joint ownership, M&A, and export issues) in the Netherlands.
Marnix was admitted to the Dutch Bar in 1999. Before joining the Litigation team of Allen & Overy in Amsterdam in 2007, he worked at a leading independent firm in the Netherlands for eight years (in corporate, finance and litigation practice groups).
Marnix has also worked in the international arbitration team of Allen & Overy in London (2013) and Perth, Australia (2017-2018).
Marnix’s educational background includes a Master's degree in Dutch civil law from Leiden University (1993-1998) and a Diploma in Legal Studies from King’s College London (1997-1998). He is a native Dutch speaker and fluent in English.