Meghan Markle was a little too busy welcoming her first child, Archie Harrison Mountbatten-Windsor, to attend her 20th high school reunion back in America. But despite her new life with Prince Harry, she still managed to send a heartfelt apology for her absence.

The Duchess grew up in Los Angeles, California, where she attended school at Immaculate Heart. The 20th reunion took place on May 5, coincidentally just hours before she gave birth.

But she happened to find time, amongst all the well wishes that poured in from around the world, to send a handwritten note to all of her former classmates.

The Duke & Duchess Of Sussex Pose With Their Newborn Son

According to DailyMail, one classmate understood why Markle couldn't come but was still bummed.

"Everyone was disappointed that they did not get to catch up with Meghan given everything that has happened to her," a former friend said. "But the whole group was super excited about her giving birth to the first British-American prince, it was all anyone talked about."

"They were so excited to get that letter from her. She is remembered as someone who is very thoughtful, and to get that kind of attention now that she is a Royal went down really well," the friend continued.

Immaculate Heart made sure to post a congratulations to the Duke and Duchess on social media as well.

"Immaculate Heart High School & Middle School congratulates IH alumna Meghan Markle, the Duchess of Sussex, and her husband, Prince Harry, on the birth of their son," read the post on the school's Facebook page. "The school community extends best wishes of happiness to the Royal Family on this joyous event!"

[h/t: Town and Country]