 On 3 January 1845, P. J. Brepols died and the company was continued by his only daughter, Antoinette Brepols, who had married Jan Jozef Dierckx, a merchant, in 1820.On 4 May 1835 P.J.Brepols had announced that his son-in-law would enter the family business, which would then become "Brepols & Dierckx Son".