Cecilia Cheung (張栢芝) and her ex-husband Nicholas Tse (謝霆鋒) have two sons and she gives birth to her third son, Marcus Cheung (張禮承) in November 2018, but the identity of his father remains a mystery until now.

On 18th November, she uploaded a video of Marcus’s growing up progress and wished him happy birthday. Cecilia said: “On this day in 2018, your arrival becomes a beautiful day. Happy birthday, Marcus! It feels good to have you around. Happy birthday and stay healthy!” In the video, he looks chubby and is walking towards the camera. From his facial features, Marcus resembles his father more than Cecilia.

Source: https://ol.mingpao.com/ldy/showbiz/latest/20201118/1605696434949/%e7%94%9f%e7%88%b6%e5%9f%ba%e5%9b%a0%e5%bc%b7%e5%a4%a7-%e5%bc%b5%e6%a0%a2%e8%8a%9d%e5%ad%bb%e4%bb%94%e5%85%a9%e6%ad%b2%e7%94%9f%e6%97%a5%e5%85%ac%e9%96%8b%e8%bf%91%e7%85%a7