Former Governor Martin O'Malley lost a daughter or gained a son, depending on how you look at it, this Father's Day weekend. His daughter, Grace O'Malley, married J.D. Merrill in a ceremony of around 150 guests Saturday.

“It was a very Baltimore wedding,” said the Rev. Kevin O’Brien, chaplain at Georgetown University, who presided over the ceremony. The couple was married at Baltimore’s Saint Ignatius Church on North Calvert Street in a Catholic ceremony that included elements from the Quaker tradition, such as a few minutes of silent prayer for the couple. The groom, John David Merrill, is Quaker.

“It was a beautiful ceremony,” said O’Brien.

The groom’s parents are both former members of the Baltimore Symphony Orchestra. The bride’s mother is Judge Katie O’Malley.

"Katie and I could not be happier for Grace and J.D.," O'Malley said in a statement. "She has made us so very happy and proud as parents. And we are delighted to have such a fine young man become a part of our family."

The reception took place at the Baltimore Museum of Art, as we determined through some thorough Instagram stalking. There was something of a vintage-early 1900s theme, with votive candles in textured holders, and wedding flowers looked plucked from an English garden.

O’Malley posted a pictured to Instagram Saturday of his daughter, who looked like a Swedish princess, with her tall new husband, J.D. Merrill, standing in the Bromo Seltzer tower.

“Huge congratulations to my daughter, Grace, and son-in-law, JD, on their marriage yesterday! Love you both,” read the caption. Commenters took this as an opportunity to express their opinion that the former presidential candidate should become Hillary Clinton’s vice president, and should also run for office.

The bride’s gown was backless and she wore a dainty tiara. The mother of the bride looked gorgeous and happy in a beige-ish sequinned dress that mirrored Grace’s gown without stealing any thunder.

O’Malley’s new son-in-law, J.D. Merrill is a teacher at Baltimore City College. Grace, a Georgetown graduate, is also a public school teacher and assisted her father in his campaign for president – even accompanying him to Iowa.

The couple’s listing on The Knot reveals that they got everything on their registry, including a hammered copper ice bucket, but not a five-piece place setting they wanted, because it was sold out.