Stapel, R. J.  (2014).  Priests in the military orders. A prosopographical survey of the priest-brethren in the Utrecht bailiwick of the Teutonic Order (1350-1600). In K.  Toomaspoeg (Red.), H.  Houben (Vert.), Analecta Theutonica. Studies for the History of the Teutonic Order (Vol. 1, pp. 99?149). Galatina: Congedo. Verkregen van https://pure.knaw.nl/admin/files/1011327/Stapel_Priests_in_the_military_orders_Analecta_Theutonica_1_2014_proofreading_adjusted.pdf