The Real Housewives of New Jersey stars Teresa and Joe Giudice are finalizing the funeral plans for Joe's father after his sudden death.

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Frank Giudice passed away June 18 at 63 years old after he collapsed at the reality star's home.

A source close to the family disclosed a few details of the upcoming funeral services.

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"The viewing will be on Sunday at Festas Memorial Funeral Home in Totowa. Everyone is shocked at their beloved relative dying so quickly. They all want to come and show their support for the family."

Services will continue into Monday as well.

The same insider said, "The Giudices are staunch Catholics. A Mass will be held at St. James of the marches followed immediately by a burial."

Frank is survived by his wife, Filomena Giudice, three children and several grandchildren, including Teresa and Joe's four daughters.

Just hours after Frank's passing, the couple's oldest daughter, Gia, took to her Twitter to express her grief.

She wrote, "This is not really happening right now, this is not real..."

She also shared a picture of she and her grandfather with the caption, "strongest man I know..I love you nonno rest in peace 6/18/14."

A few days later she posted cryptic tweets that read, "the pain inside my heart is unreal.. this is going to be the hardest day of my life.."

Gia, her three sisters and Joe were at home when Frank died. Teresa arrived shortly after.