A 10-year-old boy wept as masked robbers wielding a hammer and a knife ransacked his bedroom searching for safes packed with £200,000 worth of jewellery.
He saw his mother, Michelle Senior, being attacked during the raid, Leeds Crown Court heard.
Ms Senior's 11-year-old daughter was also in the house in Beeston, Leeds, when the raiders stormed inside at around 10pm on January 10.
Philip Morris,
prosecuting, said Ms Senior's boyfriend, Shaun Harker, was struck on the legs with a hammer and her son saw her being kicked and stamped on.
As the robbers fled with the jewellery, Ms Senior grabbed her own hammer and hit the robber who was armed with a knife on the back.
But he turned round and slashed her hand, causing a wound which needed stitching.
Liam Brooks, 20, of Green Mount Court, Beeston, carried a hammer on the raid. He admitted robbery and was jailed for eight years and three months.
Rafael Lovick, 22, of Trafford Grove, Leeds, was not on the raid, but played an "essential role" by providing his girlfriend's home in Woodview Mount as "safe house" and base.
Lovick also provided a hammer for the gang to crack open one of the safes.
When police raided the house three suspects were arrested and the safes recovered.
Lovick was convicted of conspiracy to rob. Judge Paul Hoffman jailed him for eight and a half years, calling the robbery brutal and ruthlessly executed.
The robber armed with a knife was previously handed an indefinite jail sentence at Leeds Crown Court for robbery and grievous bodily harm and told he must spend at least five years in prison.
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