 Giedraitis was actively involved with the congregation – he frequently visited different parishes, delivered sermons in Lithuanian, heard confessions, taught basic catechism, etc.He supported and worked to implement decisions of the Council of Trent except there is no evidence that Giedraitis called an annual diocesan synod as mandated by the council.There is evidence that he did call a synod in 1577 or 1578, which would be the first known synod in the diocese.