On June 8, 2021 my new book De tombe van Floris V (Floris the Fifth's Tomb) was published by Omniboek. It's a biography of the count culminating in his tragic death in 1296, this year 725 years ago. It also shows the impact he had on his counties Holland and Zeeland and how he was remembered in later times. One of the few monuments that has existed since the middle ages can still be seen in the main church of Alkmaar, the St. Laurenskerk. But there's something strange about it. The book may be ordered from: https://www.omniboek.nl/boek/de-tombe-van-floris-v/ or bought in your favourite bookshop.My new book on the oldest city in Holland, Dordrecht was published on May 26th, 2020. De oudste stad van Holland. Opkomst en verval van Dordrecht 1000-1421. After only six weeks it was decided that a reprint was necessary, because it was almost sold out. By the end of October half of he second print was already sold. In Dordrecht it was the best selling book at the city centre bookshop Vos & Van der Leer.On October 17, 2018 I published Dageraad van Holland about the counts of that ancient county between 1100 and 1300. It sold out in March 2020, but in June it was decided that a reprint was going to be published. It was in the shops at the end of July.I'm also a medievalist with specialist knowledge of historic daily life and the culture of human settlements from 1 to 1800 AD. I also specialize in heraldry, genealogy and costume history and the architecture and interiors of civilians' houses between 1000 and 1900.