Portugal’s conservative President Marcelo Rebelo de Sousa on Tuesday signed into law a bill decriminalising euthanasia adopted by parliament last week, after a painstaking legislative process.

The issue has divided the deeply Catholic country and witnessed strong opposition from De Sousa, a devout churchgoer.

“The president of the republic has issued the decree… as he was obliged to do” by the constitution, the presidency said in a statement.

The final version of the “medically assisted dying” law was adopted last Friday with 129 votes in favour in the 230-seat parliament, including those of the ruling Socialist Party.

“The constitution obliges the president to enact a law which he has vetoed and which has (then) been confirmed by the Assembly of the Republic. I will sign it, of course, it is my constitutional duty,” De Sousa said after the vote.

A majority of lawmakers had already voted four times in favour of decriminalising assisted dying over the past three years.

But the text faced objections from the constitutional court and the head of state, a practising Catholic.

In order to overcome the president’s last veto, the Socialists decided to vote on the same text a second time.