Genethlia (γενέθλια, birthday-feasts), the festivals among the early Christians held on the anniversary of the death of any martyr, terming it his birthday (q.v.), as being the day on which he was born to a new and higher state of being. Genga, Bartolomeo, an eminent Italian architect son of Girolamo Genga, was born at Urbino in 1518, and was instructed by Vasari and Ammanati, after which he visited Rome. He erected the church of San Pietro, at Mondovi, which surpasses, says one master, any other edifice of its size in Italy. He died at Malta in 1558. See Hoefer, Nouv. Biog. Generale, s.v.; Spooner, Biog. Hist. of the Fine Arts, s.v.