AP Photo/The White House, David Lienemann

Vice President Joe Biden daughter Ashley Biden, 30, tied the knot with Dr. Howard Krein Saturday night in a private ceremony in Wilmington, Del.

"We're happy to welcome Howard into our family, and we wish them all the best in their new life together," Vice President Biden and Dr. Jill Biden said in a statement.

Details of the engagement leaked last October after the vice president reportedly referred to Krein in public as his "future son-in-law."

Ashley Biden is the youngest of the vice president's children and his only child with wife, Dr. Jill Biden.

The vice president has two sons, Beau and Hunter, from his marriage to Neilia Hunter Biden, who died in a car accident in 1972 along with their 13-month-old daughter, Naomi.