Complex sentence: Alexandru was one of three illegitimate children of Elisabeta Văcărescu of the Văcărescu family of boyars-he and his siblings were later adopted by Zoe Văcărescu, Elisabeta's mother, who gave the children her Greek maiden name "Paleologu".
Split into simpler sentences: Alexandru was one of three illegitimate children of Elisabeta Văcărescu of the Văcărescu family of boyars. He and his siblings were later adopted by Zoe Văcărescu, Elisabeta's mother, who gave the children her Greek maiden name "Paleologu".