father death_date death_place succession house mother image_size consort birth_date spouse issue image article_title name reign
theobald i of navarre 12 august 1283 naples duchess of brittany house of champagne agnes of beaujeu 200px yes 1226 john i , duke of brittany john of hade alix , countess of châtillon ii , duke of brittany peter , lord sceau de blanche de navarre - duchesse de bretagne.png blanche of navarre , duchess of brittany
 blanche of navarre 1236 -- 1283
blanche of navarre , duchess of brittany

blanche of navarre -lrb- 1226 -- 12 august 1283 -rrb- , also known as blanche of champagne , was the daughter of theobald the troubador , king of navarre and count of champagne , and his second wife agnes of beaujeu .
she was a member of the house of champagne .
by her marriage to john i , duke of brittany she became duchess consort of brittany .
blanche was firstly betrothed to otto iii , count of burgundy ; the marriage contract was signed on 16 january 1236 .
however , the engagement was broken .
blanche was instead married in 1236 to john i , duke of brittany : the main reason he married blanche was so he could get navarre , and theobald did make john heir to the throne .
however , john renounced the claim after margaret of bourbon bore theobald two sons .
john and blanche had eight children : john ii , duke of brittany peter of brittany -lrb- 2 april 1241 -- paris , 19 october 1268 -rrb- , lord of hade alix of brittany , dame de pontarcy theobald -lrb- 1245 -- 1256 -rrb- , died young theobald -lrb- died soon after birth -rrb- eleanor -lrb- 1248 -rrb- , died young nicholas -lrb- 1249 -- 1261 -rrb- , died young robert -lrb- 1251 -- 1259 -rrb- , died young of their eight children , only their eldest three lived to adulthood .
in 1270 blanche founded the abbey de la joie near hennebont ; she was later buried there .
she died in 1283 ; her husband outlived her by three years .
blanche outlived six of her eight children .
