Neither Meghan's father nor her half-siblings were at the royal wedding last May and all have spoken to the media on multiple occasions to both criticise the Duchess of Sussex and to ask her to reach out. However there was conflict in Meghan's family before she was even born that could still be affecting the family dynamic. It was Samantha, whose birth name was Yvonne, and Thomas Jnr who were at each other’s throats growing up. Related articles Meghan Markle sent secret message by Samantha Markle with baby gift How Meghan revealed what she TRULY felt about her FATHER Both are significantly older than Meghan, with Samantha being 17 when Meghan was born. According to 2018 book ‘Meghan: A Hollywood Princess’ Samantha and Thomas Jnr were the “sibling rivals from hell”. Royal biographer Andrew Morton explained how Samantha and Thomas Jnr’s parents split up when they were young and they initially lived with their mother, before moving to California to live with their father. Samantha moved when she was around 14 years old and Thomas Jnr moved a few years later just in time to start High School. READ MORE: Meghan Markle's estranged sister Samantha makes deperate plea Meghan Markle's sister Samantha Markle on Channel 5 (Image: GETTY & CHANNEL 5) Thomas Markle Snr (left) and Thomas Markle Jnr (Image: ITV / MIRROR) Mr Morton said: “Though he still idolised his father, there was one big fat fly in the ointment of his new life – his sister Yvonne. “They’d always fought like cat and dog – the sibling rivals from hell.” He described several incidents during their life in California that highlight this rivalry. He wrote: “When the trio moved from Santa Monica to a large home on Providencia Street [Los Angeles], adjacent to the Woodland Hills Country Club, Tom Jnr snagged the downstairs den as his bedroom. Related articles Meghan Markle could have RESOLVED family drama with THIS solution Meghan Markle's half-sister Samantha MOCKED over 'sick' book Meghan's family asked her to reach out after baby Archie was born (Image: GETTY) “He was especially thrilled when a friend sold him a king-sized waterbed. “His excitement turned to dismay when he sat on it shortly after taking delivery only to be soaked in water. “Inspecting the evidence, he discovered several holes in the brand new bed. “There was only one suspect: his sister Yvonne immediately admitted responsibility, but argued that it was retribution as she had wanted that room for herself.” Meghan Markle and Prince Harry no longer talk to Meghan's father side of the family (Image: GETTY) Tom Jnr did not have kind words for his sister, claiming she called their black step-mother Doria Ragland “the maid”. He added that Samantha had a fascination with black magic that “disturbed” him. Another episode in their “bitter resentful dance” was when Samantha came to the flower shop where Thomas Jnr worked to borrow money from him. Meghan's mother Doria Ragland and Harry's father Prince Charles (Image: GETTY) While he was busy serving customers, she drew a pentagram and wrote ‘666’ on his colleague Richard’s bible. Thomas managed to get back at her by telling her that Richard was so traumatised he had run into the road and was hit by a bus. She apparently then raced back to the shop to check on Richard’s condition. Related articles Comments Unavailable Sorry, we are unable to accept comments about this article at the moment. However, you will find some great articles which you can comment on right now in our Comment section. All rights reserved for this news site express.co.uk and under his responsibility