Brooklyn Beckham publicly celebrated his mother-in-law Claudia Heffner Peltz's 71st birthday, shortly before staying quiet on U.K. Mother's Day amid his ongoing family drama. "Happy birthday to the best mother-in-law," Brooklyn, 27, wrote via his Instagram Stories on Saturday, March 14. "Love [you] so much and hope [you] had the most amazing day ❤️." Brooklyn also reposted his wife Nicola Peltz Beckham's tribute to her mom. "Happy birthday to my mom! The pure fact that I get to call you mom makes me truly, the luckiest ever," Nicola, 31, wrote hours earlier on Saturday.