'Vikings': Lagertha actress wishes her on-screen son on his birthday

Canadian actor Alexander Ludwig on Friday celebrated his 29th birthday. The "Vikings" star received birthday greetings from his thousands of fans on social media.

Katheryn Winnick. who played his mother in "Vikings", also shared a picture with his on-screen son to wish him on his birthday.

Alexander, who played Bjorn Ironside, the son of Lagertha and Ragnar Lothbrok, tied the knot with his girlfriend Lauren Dear in January this year.