The last decade saw the completion of years of verification research in the area of the imperial pfalz in Verla, where the architectural relics of the residential buildings have always been a reference point for the palatium on Ostrów Lednicki. Last year, relics of a quadrifoil structure under the floor of the crypt of the Collegiate Church of St. Servatius in Quedlinburg were also re-exposed. The paper aims to confront the results of this research with the current state of knowledge on Piast residences in Greater Poland and reiterates the question of the influence of two Saxon centres on the early Piast palatiums on Ostrów Lednicki, in Giecz and in Poznań.
