After Varlet's death on 14 May 1742, Meindaerts set himself to the task of ensuring apostolic succession within the
Old Catholic Church. On 2 September 1742 he consecrated Hieronymus de Bock as Bishop of
Haarlem, a see left vacant by the
Roman Catholic Church since 1587. Upon Bock's death, he consecrated John van Stiphout as Bishop of
Haarlem on 11 July 1745. After three failed attempts of reunion with the
Roman Catholic Church, Meindaerts consecrated a third bishop on 25 January 1758: Bartholomew John Byeveld, who served as Bishop of
Deventer, a titular bishopric with no parishes. The consecration was denounced by
Benedict XIV, and Meindaerts responded with a letter that was translated to French, Latin, Italian, Spanish and Portuguese. Three editions of his French letter were reprinted. ==1763 Provincial Synod of Utrecht==