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Michael Gambon, the Irish born, English raised actor who plays Hogwarts headmaster Albus Dumbledore in the “Harry Potter” film series has become a father again at the age of 68.

Gambon’s lover, 43-year-old set designer Philippa Hart, gave birth to his third child, William, in late June. The pair already has a two-year-old son, Michael, together.

The Irish actor has been married to Lady Gambon for the past 45 years, and has a 44-year-old son named Fergus with her.

Gambon splits his time between his two families.

The Sun newspaper reported that though the situation is complicated and a bit strange, all involved are thrilled with the arrival of the new baby.

"Philippa gave birth at a London hospital without complications and little Michael is a beautiful bouncing baby. It is a very strange set of circumstances worthy of a film script in itself,” the family friend said.

"But Michael is open with his wife and she accepts the second relationship, though there have been rows in the past."

Known as one of Britain’s greatest thespians, actor Michael Gambon is actually a native of Ireland.

He was born in Dublin during World War II into a large family. After the war was over and Michael was five, his father decided to move his family across the Irish Sea to find work in London. Gambon soon became an English citizen, which later allowed him to be knighted and to be awarded a CBE in the country.

The “Harry Potter” star grew up in a struggling Irish community in London, and was raised a strict Roman Catholic.

He left school at the age of 15, and eventually entered the British theater scene, headlining Shakespearean tragedies on West End. Laurence Olivier hand-picked the actor to help form the original Royal National Theatre Company in 1963.

The talented Irish actor eventually shot to film stardom with roles in popular films such as “A Man of No Importance,” “Mary Reilly” and “Gosford Park.”

It was when he joined the cast of the “Harry Potter” film series to step in as Professor Albus Dumbledore for the late Irish actor Richard Harris in 2004’s “Harry Potter and the Prisoner of Azkaban” that Gambon became a household name for a new generation.