Lora is a free, open-source serif typeface available from Google Fonts. The italics of Lora have a very calligraphic-feel to them and they look great rendered on screen. Lora is available in normal and bold with corresponding italics.
If you are looking for an alternative to Lora, I recommend checking out Neuton and Libre Baskerville. I think Open Sans would make a nice font combination with Lora.