Andrew Mountbatten Windsor and Sarah Ferguson were noticeably absent from Princess Eugenie's sweet birthday photos for her son, Ernest, with the pregnant royal paying a heartfelt tribute to her "fearless golden boy" on social media

'You light up every room with your deep voice and infectious smile,' Princess Eugenie said in a post that celebrated her younger son Ernie's third birthday today

The sweet post from Eugenie offers a rare glimpse into the Princess's family life.