Answer
On 21 January 2009, Pope Benedict XVI lifted the excommunications imposed on four traditionalist Catholic bishops ordained by Archbishop Marcel Lefebvre in 1988. The move aimed to bring about unity between the Catholic Church and the breakaway traditionalist group known as the Society of Saint Pius X (SSPX). The lifting of excommunications opened the way for theological discussions and reconciliation, addressing long-standing doctrinal disagreements between the SSPX and the Vatican.