On the week they were down slightly but both indexes are less than 2 per cent below their highest level this year hit last week.
"So far markets have been pretty sanguine in the face of the (French) presidential election, which was flagged as one of the potential banana skins for markets in this year," Hargreaves Lansdown senior analyst, Laith Khalaf, said.
Banking stocks, which are seen as benefiting from the victory of a mainstream candidate in the French vote, were the biggest sectoral gainers in Europe, up 0.7 per cent, while basic resources stocks ended flat after gaining initially on the back of slight gains in copper prices.
Earnings and deal-making drove stock price moves elsewhere, including a jump of 7.9 per cent for Software AG, making the shares the STOXX 600's top gainer, after reporting first-quarter results.
Excluding the energy sector, this would be a rise of 2.9 per cent.