David Beckham's daughter Harper leaves adorable messages in her big brother's school lunch boxes.

David Beckham with Harper and Cruz

David Beckham with Harper and Cruz

The seven-year-old daughter of the former football superstar and his wife Victoria Beckham has taken to writing sweet messages to her big brother Cruz, 13, for him to read whilst he's tucking into his sandwiches at school.

Fashionista Victoria revealed one of the cute notes when she took to her Instagram story to share a picture of Cruz's tinfoil wrapped sandwich, along with a note which had been taped to the foil.

It read: "Dear Cruz, I hope you like your lunch. Love Harper."

Victoria - who also has Brookly, 19, and Romeo, 16, with David - then added a similarly cute message from Cruz to the image.

She wrote: "When your little sister makes your packed lunch x"

The famous family are known for being a close-knit unit, and in a recent interview, Victoria opened up about family life where she said the family of six are "much stronger" together than they would be alone.

She said: "We are much stronger - the six of us - than we would be if we were individuals. We respect that family bond and that is key. It's all about the family unit."

Meanwhile, 43-year-old David and 44-year-old Victoria recently marked their 19th wedding anniversary with loving messages on social media.

Alongside a snap of them sat holding hands at their table, David wrote: "19 Years WOW ... This time 19 years ago I was dressed from head to toe in purple [thinking emoji] ... Happy anniversary to the most amazing wife & mummy ... Love You x @brooklynbeckham @romeobeckham @cruzbeckham #HarperSeven (sic)"

Victoria also posted the same snap to her own Instagram account.

She captioned the photograph: "19 years!!! X I love u so much x (sic)"