In 1612, he was granted Senior Third Rank, Royal Advisor and the Matsudaira surname to be called 'Harima saisho' (prime minister of Harima), 'Himeji saisho' (prime minister of Himeji), etc. (saisho was the Tang name for Sangi).
慶長17年（1612年）、正三位参議、および松平姓を許され「播磨宰相」「姫路宰相」などと称された（宰相は参議の唐名）。