Cynan ap Maredudd Leader of the Welsh revolt of Madog ap Llywelyn (1300–1295) Parents Maredudd ab Owain Children Siblings Cynan ap Maredudd ap Rhys Grûg ap Rhys Gwladus ferch Maredudd ab Owain ap Gruffudd Efa ferch Maredudd Owain ap Maredudd Gwenllian ferch Maredudd ab Owain ap Gruffudd Gruffydd ap Maredudd