Maria Pasquini Thu, October 28, 2021, 8:47 PM Bill Gates got an extra special birthday message from his daughter this year. Jennifer Gates , the eldest daughter of the Microsoft co-founder and philanthropist Melinda French Gates , posted a loving tribute to her father on Thursday in honor of his 66th birthday. In addition to a sweet message, Jennifer shared a previously unseen photograph of the father-daughter pair from her wedding to Nayel Nassar . "Happy happy 66th @thisisbillgates ✨ 🥳," she wrote alongside the snap, in which Bill smiled as he spent time with Jennifer, 25, on her big day. "Grateful to learn from your example of endless curiosity, constant exploration and desire to help humanity. Excited to hear about what you learn in this next turn around the sun," Jennifer added. " Thank you for your support of our union and dream day recently - these memories will last a lifetime 🤍 Xx Jenn." Bill Gates, Jennifer Gates Jennifer Gates/Instag