11. Alejandro was a married airline executive who had a clandestine love affair with a pilot, Francisca. Six years later, Francisca ended the affair amicably because she wanted to get married herself and start a family. She soon met David, another pilot, and they got engaged. On the occasion of the impending nuptials of Francisca and David, Alejandro, feeling nostalgic and generous, donated a valuable painting (exclusively his own and not conjugal) to Francisca. Upon learning of the donation, the wife of Alejandro, who knew of the romantic past between the two, filed a complaint to have the donation nullified. Is the donation valid, void, or voidable? Explain your answer.