Princess Charlotte is getting so grown up! The adorable toddler [1], who turned three years old in May, waltzed into the Chapel Royal in London [2] on Monday for her baby brother Louis's christening [3], and we couldn't help but notice how much she's starting to resemble her mum, Kate Middleton (as well as her great-grandmother, the queen [4]!). Charlotte rocked a sweet blue floral dress and matching Mary Janes, as well as a hip new centre part in her hair. Scroll through these photos of Charlotte side by side with childhood snaps of Kate Middleton, then see their cutest mother-daughter moments [5].