Does going to the Easter Vigil fulfill my Easter mass obligation or will I still have to go to mass on Easter Sunday?

Hey anonymous thanks for the question - its been a long time since anyone has asked me anything!! The Easter Vigil definitely counts for your Easter Mass obligation - that is like the highpoint of Eucharistic celebrations during the year. Its a long Mass with the blessing of fire and Paschal Candle, the many readings, Baptisms, Confirmations and Receptions into the Church - and its long for a reason. Its a beautiful way to celebration the Resurrection of Jesus on Easter.Another point for your consideration: when you go to Mass on Saturday night (anytime after about 4PM), that usually fulfills your Sunday obligation - its called the Mass of Anticipation - anticipating Sunday. But, if you go to a wedding on Saturday afternoon that does not (on most occasions) fulfill the Sunday obligation - hope that helps, thanks for the question.
Pax et bonuum. 
Fr. Jakub