Meghan Markle makes first appearance with Queen Elizabeth II

Meghan Markle receives flowers as she leaves after attending the Commonwealth Service at Westminster Abbey in London, Monday, March 12, 2018. Organise

Meghan Markle receives flowers as she leaves after attending the Commonwealth Service at Westminster Abbey in London, Monday, March 12, 2018. Organise

Meghan Markle receives flowers as she leaves after attending the Commonwealth Service at Westminster Abbey in London, Monday, March 12, 2018. Organise

Meghan Markle talking to children as she leaves the Commonwealth Service at Westminster Abbey in London, Monday March 12, 2018. Organised by The Royal

Britain's Prince Harry's fiancee Meghan Markle leaves the Commonwealth Service at Westminster Abbey, London Monday March 12, 2018. (Yui Mok/PA via AP)

Britain's Princess Kate The Duchess of Cambridge arrives with other family members for the Commonwealth Service at Westminster Abbey in London, Monday

Britain's Prince Harry and Meghan Markle, arrive for the Commonwealth Service at Westminster Abbey in London, Monday March 12, 2018. (Yui Mok/PA via A

Britain's Prince Harry and Meghan Markle, arrive for the Commonwealth Service at Westminster Abbey in London, Monday March 12, 2018. The service marks

LONDON (AP) — Prince Harry's bride-to-be has made her first public appearance with Queen Elizabeth II.

Meghan Markle joined the queen and other senior royals Monday at the Commonwealth Day service at London's Westminster Abbey.

It marked another milestone in Markle's path to joining the British monarch's family. The American actress is set to marry Harry on the grounds of Windsor Castle on May 19.

Harry and Markle were greeted with screams and shouts from some members of the public when they arrived at the venerable abbey.

They were joined by Prince William and his wife, Kate, Prince Charles, and other royals.