A jury at Caernarfon Crown Court heard today that John Yates beat and sexually assaulted his wife Barbara, seven months before her body was found in the boot of his car.
A friend of 49-year-old Barbara Yates said she saw her in hospital in December 2011 with "horrific injuries."
Mr Yates was arrested, but his wife withdrew her complaint, the court heard.
The 58-year-old from Warrington admits manslaughter, but denies murdering his wife.
Her body was found in the boot of his car outside the police station in St Asaph last July.
The trial continues.
More top news
Rain in the east will clear through this evening leaving much of the night drier with clearer spells.
Emergency services are being put through their paces in a two-day anti-terror exercise.
Carwyn Jones includes repealing the UK government's new restrictions on public sector strikes in his legislative programme.