{"id":13703,"date":"2026-03-20T10:40:00","date_gmt":"2026-03-20T09:40:00","guid":{"rendered":"https:\/\/www.flentrop.nl\/?post_type=medewerker&#038;p=13703"},"modified":"2026-03-20T10:43:43","modified_gmt":"2026-03-20T09:43:43","slug":"herman-sietsma","status":"publish","type":"medewerker","link":"https:\/\/www.flentrop.nl\/en\/collaborator\/herman-sietsma\/","title":{"rendered":"Herman Sietsma"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13703\" class=\"elementor elementor-13703 elementor-13698\" data-elementor-post-type=\"medewerker\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0b5e7dc e-flex e-con-boxed e-con e-parent\" data-id=\"0b5e7dc\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-44abd8e elementor-widget elementor-widget-text-editor\" data-id=\"44abd8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Herman Sietsma is a supervisor and advisor in the public and cultural sector.<\/p><p>He is a lawyer\/public administration expert and has a long career in public administration (provinces, municipalities). Currently, he is, among other things, Managing Director of Museum Huis Doorn.<\/p><p>Herman is a lover of (early) organ music and an amateur organist.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"featured_media":12928,"template":"","werkveld":[259],"class_list":["post-13703","medewerker","type-medewerker","status-publish","has-post-thumbnail","hentry","werkveld-board"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Herman Sietsma - Flentrop Orgelbouw<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.flentrop.nl\/en\/collaborator\/herman-sietsma\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Herman Sietsma - Flentrop Orgelbouw\" \/>\n<meta property=\"og:description\" content=\"Herman Sietsma is a supervisor and advisor in the public and cultural sector. He is a lawyer\/public administration expert and has a long career in public administration (provinces, municipalities). Currently, he is, among other things, Managing Director of Museum Huis Doorn. 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