A day after one of the largest pro-democracy demonstrations this tiny Persian Gulf nation had ever seen, its king was in Saudi Arabia, a close ally and neighbor, to discuss the unrest engulfing the region.

The visit of King Hamad bin Isa al-Khalifa on Wednesday, reported by The Associated Press, came just as the aging Saudi ruler, King Abdullah, returned to the country after three months of medical treatment in the United States and Morocco.

Even before King Abdullah landed in Riyadh, the capital, the Saudi government announced that it would pour billions of dollars into a fund to help its citizens marry, buy homes and start their own businesses, The A.P. reported, citing state television. Reuters said the package was estimated at $35 billion.

King Hamad had already tried his own payout — offering $2,650 to every Bahraini family in the days before large protests broke out more than a week ago — but the economic concession was not enough to stem the tide of opposition from the country’s Shiite majority. As in Saudi Arabia, the ruling class of Bahrain is made up of members of its Sunni minority.