Robert De Niro, 78, keeps it casual as he enjoys a meal out with love interest Tiffany Chen at the Ritz hotel in Madrid

They have been seen looking loved up several times together in public.

And Robert de Niro and Tiffany Chen appeared to be in good spirits as they enjoyed a meal prepared by five top chefs at the Ritz hotel in Madrid on Wednesday.

The Hollywood legend, 78, cut a casual figure in a pastel blue polo shirt, dark trousers and black trainers for the daytime outing.

He kept himself warm in a smart navy overcoat and a striped scarf, while he styled his silver locks in a slicked back style.

Meanwhile, his love interest Tiffany looked effortlessly chic in an oversized white shirt, which she paired with grey trousers and lace-up boots.

The martial arts trainer swept her brunette tresses back in a ponytail, which she tucked underneath an olive baseball cap. 

The father-of-six and Tiffany both sported face masks as they left the five-star hotel, in line with Spain's current Covid-19 guidance.

Robert and Tiffany are yet to confirm whether they are a couple, but have been seen looking loved up several times together in public.

On Monday, Robert and Tiffany were in the UK as the actor gave a talk at Cambridge University to detail his impressive acting career and give his views on the ongoing conflict in Ukraine.

Robert addressed students at the Union - founded in 1815 and has more than 70,000 life members worldwide - for around two hours.

The event, which had been kept secret until just days before, was only open to its members on a strictly first-come, first-served basis.

During the talk, the acting icon was asked his views on Ukraine, to which he responded: 'You have to stand up and say, "you can't do that, it's wrong". We have to do something - to stop this kind of aggression.'

Adding that's 'not even about democracy', more so right and wrong, Robert continued: 'The sanctions - I don't know how that really works, well I sort of do, but I don't know how much of a bite they have, what teeth they have - that's really my question.

'My fear is that this thing will go on and on, and people will get bored, watching it, even - and all of a sudden you've got a country like Ukraine that has been overtaken, and you know it shouldn't be.

'There might have to be a stronger position taken by people.'

Previous speakers include Wikileaks founder Julian Assange, actors Clint Eastwood and Ian McKellen, Katie Price, Prime Minister Winston Churchill and the Dalai Lama.

Before this outing, Robert was last seen with Tiffany during their French jaunt last year, where they kissed, held hands and cosied up.

The Goodfellas actor and Tiffany were seen packing on the PDA in Côte d'Azur, on his birthday during a jaunt on his friend and business partner James Packer's $200million yacht. 

Robert's outing also comes in the midst of his torturous divorce battle with ex-wife Grace. The ex-spouses have been locked in a divorce battle since December 2018.

In April, a judge ruled that his ex-wife, 66, should receive $1 million annually and that the couple will split the proceeds after selling their $20 million home. 

Robert and Grace were married in 1997, split in 1999, then got back together, renewed their vows in 2004 before he filed for divorce in 2018.

Initially the pair fought over custody of their nine-year-old child but now the arguments are over money and property.

Hightower's average monthly spend was $215,000 a month on credit cards and $160,000 in cash. De Niro's attorney, Caroline Krauss, claims the financial strain means the actor is running out of money. 

She said the coronavirus pandemic led to a drying up of work projects for the Hollywood star.

Months earlier, De Niro earned $5million for acting in Martin Scorsese's hit gangster flick, The Irishman. He also received 'tens of millions of dollars' through a federal coronavirus relief program.

Hightower claims that De Niro is worth $500million, but his attorney Caroline Krauss says that his estranged wife's extravagant lifestyle is making things worse.