On Saturday, April 20, 2013,Dr. Christopher Veniamin will lead the annual Lenten Clergy-Laity Retreat for Bishop Melchisedek Pleska, of the Diocese of Western PA, at St Alexander Nevsky Cathedral, Allison Park PA. The retreat will begin with Liturgy at 9:00 AM, the first lecture will begin at 11:00 AM, with the retreat concluding at 3:00 PM.