Lauren Bush Weds David Lauren, Son of Ralph Lauren, in Colorado Ceremony

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The niece of former President George W. Bush tied the knot on Sunday in the Rocky Mountains.

Lauren Bush is now Lauren Bush Lauren.

The fashionista and daughter of former President George W. Bush said "I Do" to longtime love David Lauren on Sunday. According to People, the couple exchanged vows in the Rocky Mountains on a 17,000-acre ranch owned by the father of the groom -- Ralph Lauren.

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Page Six notes that the bride, 27,  wore a Lauren designed Victorian-style gown, complete with intricate embroidery. Her husband, 39, donned a vintage Lincoln era-inspired tux, while guests were asked to wear black tie attire with a Western twist.

Among the 200 guests were former President George W. Bush, wife Laura and daughters Jenna and Barbara, as well as former Florida Governor Jeb Bush. The entire Lauren clan was present, while pal Ivanka Trump tweeted that the wedding was "a dream." Guests were treated to a country performance by Michael Martin Murphey during the reception.

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Prior to the ceremony, Bush tweeted, "Good morning world… I'm getting married today! Yay! Xo."