Alfonso de Portago was born on October 11, 1928.
Alfonso de Vilallonga's birth name is Alfonso de Vilallonga Serra.
Alfonso de Nigris's birth name is Alfonso de Nigris Guajardo.
No, the sentence is not grammatically correct. It should be: "Is it Alfonso's grandmother's birthday?"
Alfonso de Castro died in 1558.
Alfonso de Castro was born in 1495.
Alfonso de Palencia died in 1492.
Alfonso de Palencia was born in 1423.
Alfonso de Valdés died in 1532.
Alfonso de Iruarrizaga was born in 1957.
Alfonso de Galarreta was born in 1957.
Alfonso de Cartagena was born in 1384.
Alfonso de Cartagena died in 1456.