What is Sietse Bosgra?
{{Infobox person | name = Sietse Bosgra | image = Sietse Bosgra (1986).jpg | caption = Bosgra in 1986 | birth_name = Sietse Jan Bosgra | birth_date = {{Birth date|1935|9|21|df=y}} | birth_place = [[Groningen]], Netherlands | death_date = {{death date and age|2023|1|8|1935|9|21|df=y}} | death_place = [[Doorn]], Netherlands | monuments = | residence = | nationality = Dutch | occupation = political activist | known_for = | relatives = | awards = }} '''Sietse Jan Bosgra''' (21 September 1935 – 8 January 2023) was a Dutch political activist against [[colonialism]] and [[apartheid]].<ref name=ref1>{{cite web|url=https://www.trouw.nl/binnenland/sietse-bosgra-onvermoeibaar-op-de-bres-voor-zuidelijk-afrika-en-het-midden-oosten~ba0e3407/ |title=Sietse Bosgra: onvermoeibaar op de bres voor zuidelijk Afrika en het Midden-Oosten|work=[[Trouw]]|date=19 January 2023|access-date=19 January 2023|language=nl}}</ref><ref name=ref2>{{cite web|url=https://www.nrc.nl/nieuws/2023/01/18/een-onvermoeibaar-strijder-tegen-apartheid-en-kolonialisme-a4154635 |title=Een onvermoeibaar strijder tegen apartheid en kolonialisme|work=[[NRC Handelsblad]]|date=18 January 2022|access-date=19 January 2023|language=nl}}</ref><ref name=ref3>{{cite web|url=https://nieuws.nl/algemeen/20230119/antiapartheidsactivist-sietse-bosgra-87-overleden/ |title=Antiapartheidsactivist Sietse Bosgra (87) overleden|work=nieuws.nl|date=19 January 2022|access-date=19 January 2023|language=nl}}</ref><ref name=ref5>{{cite web|url=https://nos.nl/artikel/2460408-sietse-bosgra-87-overleden-activist-tegen-kolonialisme-en-apartheid |title=Sietse Bosgra (87) overleden, activist tegen kolonialisme en apartheid|work=[[NOS]]|date=19 January 2023|access-date=19 January 2023|language=nl}}</ref> ==Biography== Bosgra studied [[physics]] at the [[University of Amsterdam]] and graduated in nuclear physics. As a student he became involved in the resistance against colonialism. Bosgra was one of the founders of the ''Angola Committee'' in 1961, which was set up in response to the